diff --git a/infra/specs/client.webrtc.json b/infra/specs/client.webrtc.json
index 8f884ab..9b5c568 100644
--- a/infra/specs/client.webrtc.json
+++ b/infra/specs/client.webrtc.json
@@ -8436,7 +8436,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -8464,7 +8464,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8485,7 +8485,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8506,7 +8506,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8527,7 +8527,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8551,7 +8551,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8572,7 +8572,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -8594,7 +8594,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -8616,7 +8616,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -8638,7 +8638,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8659,7 +8659,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8680,7 +8680,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8701,7 +8701,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -8723,7 +8723,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8744,7 +8744,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8765,7 +8765,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8786,7 +8786,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8807,7 +8807,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8850,7 +8850,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -8872,7 +8872,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8893,7 +8893,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8918,7 +8918,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8939,7 +8939,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8960,7 +8960,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -8981,7 +8981,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9005,7 +9005,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9026,7 +9026,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -9048,7 +9048,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -9070,7 +9070,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -9092,7 +9092,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9113,7 +9113,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9134,7 +9134,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9155,7 +9155,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -9177,7 +9177,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9198,7 +9198,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9219,7 +9219,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9240,7 +9240,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9261,7 +9261,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9282,7 +9282,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -9304,7 +9304,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -9325,7 +9325,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
diff --git a/infra/specs/mixins.pyl b/infra/specs/mixins.pyl
index 2201698..4ba0430 100644
--- a/infra/specs/mixins.pyl
+++ b/infra/specs/mixins.pyl
@@ -322,17 +322,10 @@
       }
     }
   },
-  'win10-1703': {
+  'win10': {
     'swarming': {
       'dimensions': {
-        'os': 'Windows-10-15063'
-      }
-    }
-  },
-  'win7': {
-    'swarming': {
-      'dimensions': {
-        'os': 'Windows-7-SP1'
+        'os': 'Windows-10-19042'
       }
     }
   },
diff --git a/infra/specs/mixins_webrtc.pyl b/infra/specs/mixins_webrtc.pyl
index e972b5f..833cbcf 100644
--- a/infra/specs/mixins_webrtc.pyl
+++ b/infra/specs/mixins_webrtc.pyl
@@ -259,12 +259,5 @@
         'os': 'Windows'
       }
     }
-  },
-  'win10-1703': {
-    'swarming': {
-      'dimensions': {
-        'os': 'Windows-10-15063',
-      },
-    },
-  },
+  }
 }
diff --git a/infra/specs/test_suites.pyl b/infra/specs/test_suites.pyl
index b954bb3..00a699b 100644
--- a/infra/specs/test_suites.pyl
+++ b/infra/specs/test_suites.pyl
@@ -220,13 +220,11 @@
     },
     'win_video_capture_tests': {
       'video_capture_tests': {
-        'remove_mixins': ['win7'],
         'mixins': ['win', 'baremetal-pool'],
       }
     },
     'win_video_capture_tests_tryserver': {
       'video_capture_tests': {
-        'remove_mixins': ['win7'],
         'mixins': ['win', 'baremetal-try-pool'],
       }
     },
diff --git a/infra/specs/tryserver.webrtc.json b/infra/specs/tryserver.webrtc.json
index 549fb76..b035be4 100644
--- a/infra/specs/tryserver.webrtc.json
+++ b/infra/specs/tryserver.webrtc.json
@@ -12364,7 +12364,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12385,7 +12385,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12406,7 +12406,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12427,7 +12427,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12451,7 +12451,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12472,7 +12472,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -12494,7 +12494,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -12516,7 +12516,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -12538,7 +12538,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12559,7 +12559,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12580,7 +12580,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12601,7 +12601,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -12623,7 +12623,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12644,7 +12644,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12665,7 +12665,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12686,7 +12686,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12707,7 +12707,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12728,7 +12728,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -12750,7 +12750,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12771,7 +12771,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12800,7 +12800,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12821,7 +12821,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12842,7 +12842,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12863,7 +12863,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12887,7 +12887,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12908,7 +12908,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -12930,7 +12930,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -12952,7 +12952,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -12974,7 +12974,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -12995,7 +12995,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13016,7 +13016,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13037,7 +13037,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -13059,7 +13059,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13080,7 +13080,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13101,7 +13101,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13122,7 +13122,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13143,7 +13143,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13164,7 +13164,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -13186,7 +13186,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13207,7 +13207,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13232,7 +13232,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13253,7 +13253,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13274,7 +13274,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13295,7 +13295,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13319,7 +13319,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13340,7 +13340,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -13362,7 +13362,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -13384,7 +13384,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -13406,7 +13406,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13427,7 +13427,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13448,7 +13448,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13469,7 +13469,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -13491,7 +13491,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13512,7 +13512,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13533,7 +13533,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13554,7 +13554,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13575,7 +13575,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13596,7 +13596,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -13618,7 +13618,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13639,7 +13639,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-10-15063"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13664,7 +13664,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13685,7 +13685,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13706,7 +13706,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13727,7 +13727,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13751,7 +13751,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13772,7 +13772,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -13794,7 +13794,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -13816,7 +13816,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -13838,7 +13838,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13859,7 +13859,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13880,7 +13880,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13901,7 +13901,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -13923,7 +13923,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13944,7 +13944,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13965,7 +13965,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -13986,7 +13986,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14007,7 +14007,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14028,7 +14028,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -14050,7 +14050,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14071,7 +14071,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14096,7 +14096,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14117,7 +14117,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14138,7 +14138,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14159,7 +14159,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14183,7 +14183,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14204,7 +14204,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -14226,7 +14226,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -14248,7 +14248,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -14270,7 +14270,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14291,7 +14291,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14312,7 +14312,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14333,7 +14333,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -14355,7 +14355,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14376,7 +14376,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14397,7 +14397,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14418,7 +14418,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14439,7 +14439,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14460,7 +14460,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -14482,7 +14482,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14503,7 +14503,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14528,7 +14528,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14549,7 +14549,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14570,7 +14570,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14591,7 +14591,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14615,7 +14615,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14636,7 +14636,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 2
@@ -14658,7 +14658,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -14680,7 +14680,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -14702,7 +14702,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14723,7 +14723,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14744,7 +14744,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14765,7 +14765,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 6
@@ -14787,7 +14787,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14808,7 +14808,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14829,7 +14829,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14850,7 +14850,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14871,7 +14871,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14914,7 +14914,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
@@ -14936,7 +14936,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14957,7 +14957,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -14984,7 +14984,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ]
         },
@@ -15009,7 +15009,7 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Windows-7-SP1"
+              "os": "Windows-10-19042"
             }
           ],
           "shards": 4
diff --git a/infra/specs/waterfalls.pyl b/infra/specs/waterfalls.pyl
index 062a81c..73c8e9a 100644
--- a/infra/specs/waterfalls.pyl
+++ b/infra/specs/waterfalls.pyl
@@ -179,7 +179,7 @@
       'MacArm64 Builder': {},
       'Win (more configs)': {
         'os_type': 'win',
-        'mixins': ['win7', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'more_configs_tests',
         },
@@ -188,14 +188,14 @@
       'Win32 Debug (Clang)': {},
       'Win32 Release (Clang)': {
         'os_type': 'win',
-        'mixins': ['win7', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'win_tests',
         },
       },
       'Win64 ASan': {
         'os_type': 'win',
-        'mixins': ['win10-1703', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'desktop_tests',
         },
@@ -581,7 +581,7 @@
       },
       'win_asan': {
         'os_type': 'win',
-        'mixins': ['win10-1703', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'desktop_tests',
         },
@@ -592,42 +592,42 @@
       'win_compile_x86_clang_rel': {},
       'win_x64_clang_dbg': {
         'os_type': 'win',
-        'mixins': ['win7', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'desktop_tests',
         },
       },
       'win_x64_clang_dbg_win10': {
         'os_type': 'win',
-        'mixins': ['win10-1703', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'desktop_tests',
         },
       },
       'win_x64_clang_rel': {
         'os_type': 'win',
-        'mixins': ['win7', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'desktop_tests',
         },
       },
       'win_x86_clang_dbg': {
         'os_type': 'win',
-        'mixins': ['win7', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'desktop_tests',
         },
       },
       'win_x86_clang_rel': {
         'os_type': 'win',
-        'mixins': ['win7', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'win_tests_tryserver',
         },
       },
       'win_x86_more_configs': {
         'os_type': 'win',
-        'mixins': ['win7', 'x86-64', 'resultdb-json-format'],
+        'mixins': ['win10', 'x86-64', 'resultdb-json-format'],
         'test_suites': {
           'isolated_scripts': 'more_configs_tests',
         },
diff --git a/modules/desktop_capture/BUILD.gn b/modules/desktop_capture/BUILD.gn
index 3cc5c07..6b3a5f5 100644
--- a/modules/desktop_capture/BUILD.gn
+++ b/modules/desktop_capture/BUILD.gn
@@ -635,8 +635,14 @@
       "win/wgc_desktop_frame.cc",
       "win/wgc_desktop_frame.h",
     ]
-    libs += [ "dwmapi.lib" ]
-    deps += [ "../../rtc_base/win:hstring" ]
+    libs += [
+      "dwmapi.lib",
+      "CoreMessaging.lib",
+    ]
+    deps += [
+      "../../rtc_base:rtc_event",
+      "../../rtc_base/win:hstring",
+    ]
   }
 }
 
diff --git a/modules/desktop_capture/win/wgc_capture_session.cc b/modules/desktop_capture/win/wgc_capture_session.cc
index f894573..0ff2db2 100644
--- a/modules/desktop_capture/win/wgc_capture_session.cc
+++ b/modules/desktop_capture/win/wgc_capture_session.cc
@@ -10,6 +10,7 @@
 
 #include "modules/desktop_capture/win/wgc_capture_session.h"
 
+#include <DispatcherQueue.h>
 #include <windows.graphics.capture.interop.h>
 #include <windows.graphics.directX.direct3d11.interop.h>
 #include <windows.graphics.h>
@@ -36,13 +37,13 @@
 
 // We must use a BGRA pixel format that has 4 bytes per pixel, as required by
 // the DesktopFrame interface.
-const auto kPixelFormat = ABI::Windows::Graphics::DirectX::DirectXPixelFormat::
-    DirectXPixelFormat_B8G8R8A8UIntNormalized;
+constexpr auto kPixelFormat = ABI::Windows::Graphics::DirectX::
+    DirectXPixelFormat::DirectXPixelFormat_B8G8R8A8UIntNormalized;
 
-// We only want 1 buffer in our frame pool to reduce latency. If we had more,
-// they would sit in the pool for longer and be stale by the time we are asked
-// for a new frame.
-const int kNumBuffers = 1;
+// The maximum time `GetFrame` will wait for a frame to arrive, if we don't have
+// any in the pool.
+constexpr int kMaxWaitForFrameMs = 50;
+constexpr int kMaxWaitForFirstFrameMs = 500;
 
 // These values are persisted to logs. Entries should not be renumbered and
 // numeric values should never be reused.
@@ -54,9 +55,9 @@
   kD3dDelayLoadFailed = 4,
   kD3dDeviceCreationFailed = 5,
   kFramePoolActivationFailed = 6,
-  kFramePoolCastFailed = 7,
-  kGetItemSizeFailed = 8,
-  kCreateFreeThreadedFailed = 9,
+  // kFramePoolCastFailed = 7, (deprecated)
+  // kGetItemSizeFailed = 8, (deprecated)
+  kCreateFramePoolFailed = 9,
   kCreateCaptureSessionFailed = 10,
   kStartCaptureFailed = 11,
   kMaxValue = kStartCaptureFailed
@@ -100,7 +101,9 @@
     : d3d11_device_(std::move(d3d11_device)),
       item_(std::move(item)),
       size_(size) {}
-WgcCaptureSession::~WgcCaptureSession() = default;
+WgcCaptureSession::~WgcCaptureSession() {
+  RemoveEventHandlers();
+}
 
 HRESULT WgcCaptureSession::StartCapture() {
   RTC_DCHECK_RUN_ON(&sequence_checker_);
@@ -118,12 +121,13 @@
   // Listen for the Closed event, to detect if the source we are capturing is
   // closed (e.g. application window is closed or monitor is disconnected). If
   // it is, we should abort the capture.
+  item_closed_token_ = std::make_unique<EventRegistrationToken>();
   auto closed_handler =
       Microsoft::WRL::Callback<ABI::Windows::Foundation::ITypedEventHandler<
           WGC::GraphicsCaptureItem*, IInspectable*>>(
           this, &WgcCaptureSession::OnItemClosed);
-  EventRegistrationToken item_closed_token;
-  HRESULT hr = item_->add_Closed(closed_handler.Get(), &item_closed_token);
+  HRESULT hr =
+      item_->add_Closed(closed_handler.Get(), item_closed_token_.get());
   if (FAILED(hr)) {
     RecordStartCaptureResult(StartCaptureResult::kAddClosedFailed);
     return hr;
@@ -157,22 +161,25 @@
     return hr;
   }
 
-  // Cast to FramePoolStatics2 so we can use CreateFreeThreaded and avoid the
-  // need to have a DispatcherQueue. We don't listen for the FrameArrived event,
-  // so there's no difference.
-  ComPtr<WGC::IDirect3D11CaptureFramePoolStatics2> frame_pool_statics2;
-  hr = frame_pool_statics->QueryInterface(IID_PPV_ARGS(&frame_pool_statics2));
+  hr = frame_pool_statics->Create(direct3d_device_.Get(), kPixelFormat,
+                                  kNumBuffers, size_, &frame_pool_);
   if (FAILED(hr)) {
-    RecordStartCaptureResult(StartCaptureResult::kFramePoolCastFailed);
+    RecordStartCaptureResult(StartCaptureResult::kCreateFramePoolFailed);
     return hr;
   }
 
-  hr = frame_pool_statics2->CreateFreeThreaded(
-      direct3d_device_.Get(), kPixelFormat, kNumBuffers, size_, &frame_pool_);
-  if (FAILED(hr)) {
-    RecordStartCaptureResult(StartCaptureResult::kCreateFreeThreadedFailed);
-    return hr;
-  }
+  frames_in_pool_ = 0;
+
+  // Because `WgcCapturerWin` created a `DispatcherQueue`, and we created
+  // `frame_pool_` via `Create`, the `FrameArrived` event will be delivered on
+  // the current thread.
+  frame_arrived_token_ = std::make_unique<EventRegistrationToken>();
+  auto frame_arrived_handler =
+      Microsoft::WRL::Callback<ABI::Windows::Foundation::ITypedEventHandler<
+          WGC::Direct3D11CaptureFramePool*, IInspectable*>>(
+          this, &WgcCaptureSession::OnFrameArrived);
+  hr = frame_pool_->add_FrameArrived(frame_arrived_handler.Get(),
+                                     frame_arrived_token_.get());
 
   hr = frame_pool_->CreateCaptureSession(item_.Get(), &session_);
   if (FAILED(hr)) {
@@ -205,6 +212,10 @@
 
   RTC_DCHECK(is_capture_started_);
 
+  if (frames_in_pool_ < 1)
+    wait_for_frame_event_.Wait(first_frame_ ? kMaxWaitForFirstFrameMs
+                                            : kMaxWaitForFrameMs);
+
   ComPtr<WGC::IDirect3D11CaptureFrame> capture_frame;
   HRESULT hr = frame_pool_->TryGetNextFrame(&capture_frame);
   if (FAILED(hr)) {
@@ -218,6 +229,9 @@
     return hr;
   }
 
+  first_frame_ = false;
+  --frames_in_pool_;
+
   // We need to get `capture_frame` as an `ID3D11Texture2D` so that we can get
   // the raw image data in the format required by the `DesktopFrame` interface.
   ComPtr<ABI::Windows::Graphics::DirectX::Direct3D11::IDirect3DSurface>
@@ -358,6 +372,16 @@
   return d3d11_device_->CreateTexture2D(&map_desc, nullptr, &mapped_texture_);
 }
 
+HRESULT WgcCaptureSession::OnFrameArrived(
+    WGC::IDirect3D11CaptureFramePool* sender,
+    IInspectable* event_args) {
+  RTC_DCHECK_RUN_ON(&sequence_checker_);
+  RTC_DCHECK_LT(frames_in_pool_, kNumBuffers);
+  ++frames_in_pool_;
+  wait_for_frame_event_.Set();
+  return S_OK;
+}
+
 HRESULT WgcCaptureSession::OnItemClosed(WGC::IGraphicsCaptureItem* sender,
                                         IInspectable* event_args) {
   RTC_DCHECK_RUN_ON(&sequence_checker_);
@@ -366,6 +390,8 @@
   item_closed_ = true;
   is_capture_started_ = false;
 
+  RemoveEventHandlers();
+
   mapped_texture_ = nullptr;
   session_ = nullptr;
   frame_pool_ = nullptr;
@@ -376,4 +402,22 @@
   return S_OK;
 }
 
+void WgcCaptureSession::RemoveEventHandlers() {
+  HRESULT hr;
+  if (frame_pool_ && frame_arrived_token_) {
+    hr = frame_pool_->remove_FrameArrived(*frame_arrived_token_);
+    frame_arrived_token_.reset();
+    if (FAILED(hr)) {
+      RTC_LOG(LS_WARNING) << "Failed to remove FrameArrived event handler: "
+                          << hr;
+    }
+  }
+  if (item_ && item_closed_token_) {
+    hr = item_->remove_Closed(*item_closed_token_);
+    item_closed_token_.reset();
+    if (FAILED(hr))
+      RTC_LOG(LS_WARNING) << "Failed to remove Closed event handler: " << hr;
+  }
+}
+
 }  // namespace webrtc
diff --git a/modules/desktop_capture/win/wgc_capture_session.h b/modules/desktop_capture/win/wgc_capture_session.h
index 0b9d082..27d412b 100644
--- a/modules/desktop_capture/win/wgc_capture_session.h
+++ b/modules/desktop_capture/win/wgc_capture_session.h
@@ -21,6 +21,7 @@
 #include "api/sequence_checker.h"
 #include "modules/desktop_capture/desktop_capture_options.h"
 #include "modules/desktop_capture/win/wgc_capture_source.h"
+#include "rtc_base/event.h"
 
 namespace webrtc {
 
@@ -48,6 +49,12 @@
     return is_capture_started_;
   }
 
+  // We keep 2 buffers in the frame pool to balance the staleness of the frame
+  // with having to wait for frames to arrive too frequently. Too many buffers
+  // will lead to a high latency, and too few will lead to poor performance.
+  // We make this public for tests.
+  static constexpr int kNumBuffers = 2;
+
  private:
   // Initializes `mapped_texture_` with the properties of the `src_texture`,
   // overrides the values of some necessary properties like the
@@ -64,6 +71,24 @@
       ABI::Windows::Graphics::Capture::IGraphicsCaptureItem* sender,
       IInspectable* event_args);
 
+  // Event handler for `frame_pool_`'s FrameArrived event.
+  HRESULT OnFrameArrived(
+      ABI::Windows::Graphics::Capture::IDirect3D11CaptureFramePool* sender,
+      IInspectable* event_args);
+
+  void RemoveEventHandlers();
+
+  // We wait on this event in `GetFrame` if there are no frames in the pool.
+  // `OnFrameArrived` will set the event so we can proceed.
+  rtc::Event wait_for_frame_event_;
+  int frames_in_pool_;
+
+  // We're willing to wait for a frame a little longer if it's the first one.
+  bool first_frame_ = true;
+
+  std::unique_ptr<EventRegistrationToken> frame_arrived_token_;
+  std::unique_ptr<EventRegistrationToken> item_closed_token_;
+
   // A Direct3D11 Device provided by the caller. We use this to create an
   // IDirect3DDevice, and also to create textures that will hold the image data.
   Microsoft::WRL::ComPtr<ID3D11Device> d3d11_device_;
diff --git a/modules/desktop_capture/win/wgc_capturer_win.cc b/modules/desktop_capture/win/wgc_capturer_win.cc
index eacaa89..3f44dd5 100644
--- a/modules/desktop_capture/win/wgc_capturer_win.cc
+++ b/modules/desktop_capture/win/wgc_capturer_win.cc
@@ -10,6 +10,7 @@
 
 #include "modules/desktop_capture/win/wgc_capturer_win.h"
 
+#include <DispatcherQueue.h>
 #include <windows.foundation.metadata.h>
 #include <windows.graphics.capture.h>
 
@@ -45,7 +46,8 @@
   kSessionStartFailure = 4,
   kGetFrameFailure = 5,
   kFrameDropped = 6,
-  kMaxValue = kFrameDropped
+  kCreateDispatcherQueueFailure = 7,
+  kMaxValue = kCreateDispatcherQueueFailure
 };
 
 void RecordWgcCapturerResult(WgcCapturerResult error) {
@@ -57,20 +59,34 @@
 }  // namespace
 
 bool IsWgcSupported(CaptureType capture_type) {
-  if (capture_type == CaptureType::kScreen) {
-    // A bug in the WGC API `CreateForMonitor` was fixed in 20H1.
-    if (rtc::rtc_win::GetVersion() < rtc::rtc_win::Version::VERSION_WIN10_20H1)
+  if (!HasActiveDisplay()) {
+    // There is a bug in `CreateForMonitor` that causes a crash if there are no
+    // active displays. The crash was fixed in Win11, but we are still unable
+    // to capture screens without an active display.
+    if (capture_type == CaptureType::kScreen)
       return false;
 
-    // There is another bug in `CreateForMonitor` that causes a crash if there
-    // are no active displays.
-    if (!HasActiveDisplay())
+    // There is a bug in the DWM (Desktop Window Manager) that prevents it from
+    // providing image data if there are no displays attached. This was fixed in
+    // Windows 11.
+    if (rtc::rtc_win::GetVersion() < rtc::rtc_win::Version::VERSION_WIN11)
       return false;
   }
 
+  // A bug in the WGC API `CreateForMonitor` prevents capturing the entire
+  // virtual screen (all monitors simultaneously), this was fixed in 20H1. Since
+  // we can't assert that we won't be asked to capture the entire virtual
+  // screen, we report unsupported so we can fallback to another capturer.
+  if (capture_type == CaptureType::kScreen &&
+      rtc::rtc_win::GetVersion() < rtc::rtc_win::Version::VERSION_WIN10_20H1) {
+    return false;
+  }
+
   if (!ResolveCoreWinRTDelayload())
     return false;
 
+  // We need to check if the WGC APIs are presesnt on the system. Certain SKUs
+  // of Windows ship without these APIs.
   ComPtr<ABI::Windows::Foundation::Metadata::IApiInformationStatics>
       api_info_statics;
   HRESULT hr = GetActivationFactory<
@@ -104,6 +120,7 @@
   if (FAILED(hr) || !is_type_present)
     return false;
 
+  // If the APIs are present, we need to check that they are supported.
   ComPtr<WGC::IGraphicsCaptureSessionStatics> capture_session_statics;
   hr = GetActivationFactory<
       WGC::IGraphicsCaptureSessionStatics,
@@ -224,9 +241,32 @@
     return;
   }
 
+  HRESULT hr;
+  if (!dispatcher_queue_created_) {
+    // Set the apartment type to NONE because this thread should already be COM
+    // initialized.
+    DispatcherQueueOptions options{
+        sizeof(DispatcherQueueOptions),
+        DISPATCHERQUEUE_THREAD_TYPE::DQTYPE_THREAD_CURRENT,
+        DISPATCHERQUEUE_THREAD_APARTMENTTYPE::DQTAT_COM_NONE};
+    ComPtr<ABI::Windows::System::IDispatcherQueueController> queue_controller;
+    hr = CreateDispatcherQueueController(options, &queue_controller);
+
+    // If there is already a DispatcherQueue on this thread, that is fine. Its
+    // lifetime is tied to the thread's, and as long as the thread has one, even
+    // if we didn't create it, the capture session's events will be delivered on
+    // this thread.
+    if (FAILED(hr) && hr != RPC_E_WRONG_THREAD) {
+      RecordWgcCapturerResult(WgcCapturerResult::kCreateDispatcherQueueFailure);
+      callback_->OnCaptureResult(DesktopCapturer::Result::ERROR_PERMANENT,
+                                 /*frame=*/nullptr);
+    } else {
+      dispatcher_queue_created_ = true;
+    }
+  }
+
   int64_t capture_start_time_nanos = rtc::TimeNanos();
 
-  HRESULT hr;
   WgcCaptureSession* capture_session = nullptr;
   std::map<SourceId, WgcCaptureSession>::iterator session_iter =
       ongoing_captures_.find(capture_source_->GetSourceId());
diff --git a/modules/desktop_capture/win/wgc_capturer_win.h b/modules/desktop_capture/win/wgc_capturer_win.h
index ba212b6..f1f8f97 100644
--- a/modules/desktop_capture/win/wgc_capturer_win.h
+++ b/modules/desktop_capture/win/wgc_capturer_win.h
@@ -11,6 +11,7 @@
 #ifndef MODULES_DESKTOP_CAPTURE_WIN_WGC_CAPTURER_WIN_H_
 #define MODULES_DESKTOP_CAPTURE_WIN_WGC_CAPTURER_WIN_H_
 
+#include <DispatcherQueue.h>
 #include <d3d11.h>
 #include <wrl/client.h>
 
@@ -109,6 +110,13 @@
   bool IsSourceBeingCaptured(SourceId id);
 
  private:
+  // We need to either create or ensure that someone else created a
+  // `DispatcherQueue` on the current thread so that events will be delivered
+  // on the current thread rather than an arbitrary thread. A
+  // `DispatcherQueue`'s lifetime is tied to the thread's, and we don't post
+  // any work to it, so we don't need to hold a reference.
+  bool dispatcher_queue_created_ = false;
+
   // Factory to create a WgcCaptureSource for us whenever SelectSource is
   // called. Initialized at construction with a source-specific implementation.
   std::unique_ptr<WgcCaptureSourceFactory> source_factory_;
diff --git a/modules/desktop_capture/win/wgc_capturer_win_unittest.cc b/modules/desktop_capture/win/wgc_capturer_win_unittest.cc
index b83266c..9339526 100644
--- a/modules/desktop_capture/win/wgc_capturer_win_unittest.cc
+++ b/modules/desktop_capture/win/wgc_capturer_win_unittest.cc
@@ -18,12 +18,14 @@
 #include "modules/desktop_capture/desktop_capture_types.h"
 #include "modules/desktop_capture/desktop_capturer.h"
 #include "modules/desktop_capture/win/test_support/test_window.h"
+#include "modules/desktop_capture/win/wgc_capture_session.h"
 #include "modules/desktop_capture/win/window_capture_utils.h"
 #include "rtc_base/checks.h"
 #include "rtc_base/logging.h"
 #include "rtc_base/thread.h"
 #include "rtc_base/time_utils.h"
 #include "rtc_base/win/scoped_com_initializer.h"
+#include "rtc_base/win/windows_version.h"
 #include "system_wrappers/include/metrics.h"
 #include "system_wrappers/include/sleep.h"
 #include "test/gtest.h"
@@ -31,40 +33,54 @@
 namespace webrtc {
 namespace {
 
-const char kWindowThreadName[] = "wgc_capturer_test_window_thread";
-const WCHAR kWindowTitle[] = L"WGC Capturer Test Window";
+constexpr char kWindowThreadName[] = "wgc_capturer_test_window_thread";
+constexpr WCHAR kWindowTitle[] = L"WGC Capturer Test Window";
 
-const char kCapturerImplHistogram[] =
+constexpr char kCapturerImplHistogram[] =
     "WebRTC.DesktopCapture.Win.DesktopCapturerImpl";
 
-const char kCapturerResultHistogram[] =
+constexpr char kCapturerResultHistogram[] =
     "WebRTC.DesktopCapture.Win.WgcCapturerResult";
-const int kSuccess = 0;
-const int kSessionStartFailure = 4;
+constexpr int kSuccess = 0;
+constexpr int kSessionStartFailure = 4;
 
-const char kCaptureSessionResultHistogram[] =
+constexpr char kCaptureSessionResultHistogram[] =
     "WebRTC.DesktopCapture.Win.WgcCaptureSessionStartResult";
-const int kSourceClosed = 1;
+constexpr int kSourceClosed = 1;
 
-const char kCaptureTimeHistogram[] =
+constexpr char kCaptureTimeHistogram[] =
     "WebRTC.DesktopCapture.Win.WgcCapturerFrameTime";
 
-const int kSmallWindowWidth = 200;
-const int kSmallWindowHeight = 100;
-const int kMediumWindowWidth = 300;
-const int kMediumWindowHeight = 200;
-const int kLargeWindowWidth = 400;
-const int kLargeWindowHeight = 500;
+// The capturer keeps `kNumBuffers` in its frame pool, so we need to request
+// that many frames to clear those out. The next frame will have the new size
+// (if the size has changed) so we will resize the frame pool at this point.
+// Then, we need to clear any frames that may have delivered to the frame pool
+// before the resize. Finally, the next frame will be guaranteed to be the new
+// size.
+constexpr int kNumCapturesToFlushBuffers =
+    WgcCaptureSession::kNumBuffers * 2 + 1;
+
+constexpr int kSmallWindowWidth = 200;
+constexpr int kSmallWindowHeight = 100;
+constexpr int kMediumWindowWidth = 300;
+constexpr int kMediumWindowHeight = 200;
+constexpr int kLargeWindowWidth = 400;
+constexpr int kLargeWindowHeight = 500;
 
 // The size of the image we capture is slightly smaller than the actual size of
 // the window.
-const int kWindowWidthSubtrahend = 14;
-const int kWindowHeightSubtrahend = 7;
+constexpr int kWindowWidthSubtrahend = 14;
+constexpr int kWindowHeightSubtrahend = 7;
 
-// Custom message constants so we can direct our thread to close windows
-// and quit running.
-const UINT kDestroyWindow = WM_APP;
-const UINT kQuitRunning = WM_APP + 1;
+// Custom message constants so we can direct our thread to close windows and
+// quit running.
+constexpr UINT kDestroyWindow = WM_APP;
+constexpr UINT kQuitRunning = WM_APP + 1;
+
+// When testing changes to real windows, sometimes the effects (close or resize)
+// don't happen immediately, we want to keep trying until we see the effect but
+// only for a reasonable amount of time.
+constexpr int kMaxTries = 50;
 
 }  // namespace
 
@@ -185,20 +201,26 @@
     return sources[0].id;
   }
 
-  void DoCapture() {
-    // Sometimes the first few frames are empty becaues the capture engine is
-    // still starting up. We also may drop a few frames when the window is
-    // resized or un-minimized.
-    do {
+  void DoCapture(int num_captures = 1) {
+    // Capture the requested number of frames. We expect the first capture to
+    // always succeed. If we're asked for multiple frames, we do expect to see a
+    // a couple dropped frames due to resizing the window.
+    const int max_tries = num_captures == 1 ? 1 : kMaxTries;
+    int success_count = 0;
+    for (int i = 0; success_count < num_captures && i < max_tries; i++) {
       capturer_->CaptureFrame();
-    } while (result_ == DesktopCapturer::Result::ERROR_TEMPORARY);
+      if (result_ == DesktopCapturer::Result::ERROR_PERMANENT)
+        break;
+      if (result_ == DesktopCapturer::Result::SUCCESS)
+        success_count++;
+    }
 
+    total_successful_captures_ += success_count;
+    EXPECT_EQ(success_count, num_captures);
     EXPECT_EQ(result_, DesktopCapturer::Result::SUCCESS);
     EXPECT_TRUE(frame_);
-
-    EXPECT_GT(metrics::NumEvents(kCapturerResultHistogram, kSuccess),
-              successful_captures_);
-    ++successful_captures_;
+    EXPECT_GE(metrics::NumEvents(kCapturerResultHistogram, kSuccess),
+              total_successful_captures_);
   }
 
   void ValidateFrame(int expected_width, int expected_height) {
@@ -206,8 +228,7 @@
     EXPECT_EQ(frame_->size().height(),
               expected_height - kWindowHeightSubtrahend);
 
-    // Verify the buffer contains as much data as it should, and that the right
-    // colors are found.
+    // Verify the buffer contains as much data as it should.
     int data_length = frame_->stride() * frame_->size().height();
 
     // The first and last pixel should have the same color because they will be
@@ -219,7 +240,7 @@
     EXPECT_EQ(first_pixel, last_pixel);
 
     // Let's also check a pixel from the middle of the content area, which the
-    // TestWindow will paint a consistent color for us to verify.
+    // test window will paint a consistent color for us to verify.
     uint8_t* middle_pixel = frame_->data() + (data_length / 2);
 
     int sub_pixel_offset = DesktopFrame::kBytesPerPixel / 4;
@@ -251,7 +272,7 @@
   intptr_t source_id_;
   bool window_open_ = false;
   DesktopCapturer::Result result_;
-  int successful_captures_ = 0;
+  int total_successful_captures_ = 0;
   std::unique_ptr<DesktopFrame> frame_;
   std::unique_ptr<DesktopCapturer> capturer_;
 };
@@ -310,13 +331,12 @@
   capturer_->Start(this);
 
   int64_t start_time;
-  do {
-    start_time = rtc::TimeNanos();
-    capturer_->CaptureFrame();
-  } while (result_ == DesktopCapturer::Result::ERROR_TEMPORARY);
+  start_time = rtc::TimeNanos();
+  capturer_->CaptureFrame();
 
   int capture_time_ms =
       (rtc::TimeNanos() - start_time) / rtc::kNumNanosecsPerMillisec;
+  EXPECT_EQ(result_, DesktopCapturer::Result::SUCCESS);
   EXPECT_TRUE(frame_);
 
   // The test may measure the time slightly differently than the capturer. So we
@@ -332,6 +352,8 @@
                                            CaptureType::kScreen));
 
 TEST(WgcCapturerNoMonitorTest, NoMonitors) {
+  ScopedCOMInitializer com_initializer(ScopedCOMInitializer::kMTA);
+  EXPECT_TRUE(com_initializer.Succeeded());
   if (HasActiveDisplay()) {
     RTC_LOG(LS_INFO) << "Skip WgcCapturerWinTest designed specifically for "
                         "systems with no monitors";
@@ -341,6 +363,13 @@
   // A bug in `CreateForMonitor` prevents screen capture when no displays are
   // attached.
   EXPECT_FALSE(IsWgcSupported(CaptureType::kScreen));
+
+  // A bug in the DWM (Desktop Window Manager) prevents it from providing image
+  // data if there are no displays attached. This was fixed in Windows 11.
+  if (rtc::rtc_win::GetVersion() < rtc::rtc_win::Version::VERSION_WIN11)
+    EXPECT_FALSE(IsWgcSupported(CaptureType::kWindow));
+  else
+    EXPECT_TRUE(IsWgcSupported(CaptureType::kWindow));
 }
 
 class WgcCapturerMonitorTest : public WgcCapturerWinTest {
@@ -452,15 +481,11 @@
   ValidateFrame(kSmallWindowWidth, kSmallWindowHeight);
 
   ResizeTestWindow(window_info_.hwnd, kSmallWindowWidth, kMediumWindowHeight);
-  DoCapture();
-  // We don't expect to see the new size until the next capture, as the frame
-  // pool hadn't had a chance to resize yet to fit the new, larger image.
-  DoCapture();
+  DoCapture(kNumCapturesToFlushBuffers);
   ValidateFrame(kSmallWindowWidth, kMediumWindowHeight);
 
   ResizeTestWindow(window_info_.hwnd, kLargeWindowWidth, kMediumWindowHeight);
-  DoCapture();
-  DoCapture();
+  DoCapture(kNumCapturesToFlushBuffers);
   ValidateFrame(kLargeWindowWidth, kMediumWindowHeight);
 }
 
@@ -473,13 +498,11 @@
   ValidateFrame(kLargeWindowWidth, kLargeWindowHeight);
 
   ResizeTestWindow(window_info_.hwnd, kLargeWindowWidth, kMediumWindowHeight);
-  // We expect to see the new size immediately because the image data has shrunk
-  // and will fit in the existing buffer.
-  DoCapture();
+  DoCapture(kNumCapturesToFlushBuffers);
   ValidateFrame(kLargeWindowWidth, kMediumWindowHeight);
 
   ResizeTestWindow(window_info_.hwnd, kSmallWindowWidth, kMediumWindowHeight);
-  DoCapture();
+  DoCapture(kNumCapturesToFlushBuffers);
   ValidateFrame(kSmallWindowWidth, kMediumWindowHeight);
 }
 
@@ -491,7 +514,7 @@
 
   // Minmize the window and capture should continue but return temporary errors.
   MinimizeTestWindow(window_info_.hwnd);
-  for (int i = 0; i < 10; ++i) {
+  for (int i = 0; i < 5; ++i) {
     capturer_->CaptureFrame();
     EXPECT_EQ(result_, DesktopCapturer::Result::ERROR_TEMPORARY);
   }
@@ -520,19 +543,24 @@
   // stops.
   auto* wgc_capturer = static_cast<WgcCapturerWin*>(capturer_.get());
   MSG msg;
-  while (wgc_capturer->IsSourceBeingCaptured(source_id_)) {
+  for (int i = 0;
+       wgc_capturer->IsSourceBeingCaptured(source_id_) && i < kMaxTries; ++i) {
     // Unlike GetMessage, PeekMessage will not hang if there are no messages in
     // the queue.
     PeekMessage(&msg, 0, 0, 0, PM_REMOVE);
     SleepMs(1);
   }
 
-  // Occasionally, one last frame will have made it into the frame pool before
-  // the window closed. The first call will consume it, and in that case we need
-  // to make one more call to CaptureFrame.
-  capturer_->CaptureFrame();
-  if (result_ == DesktopCapturer::Result::SUCCESS)
+  EXPECT_FALSE(wgc_capturer->IsSourceBeingCaptured(source_id_));
+
+  // The frame pool can buffer `kNumBuffers` frames. We must consume these
+  // and then make one more call to CaptureFrame before we expect to see the
+  // failure.
+  int num_tries = 0;
+  do {
     capturer_->CaptureFrame();
+  } while (result_ == DesktopCapturer::Result::SUCCESS &&
+           ++num_tries <= WgcCaptureSession::kNumBuffers);
 
   EXPECT_GE(metrics::NumEvents(kCapturerResultHistogram, kSessionStartFailure),
             1);