diff --git a/change/react-native-windows-85407e5a-8b6f-41fe-b146-e73c385e9b34.json b/change/react-native-windows-85407e5a-8b6f-41fe-b146-e73c385e9b34.json
new file mode 100644
index 00000000000..8416a933042
--- /dev/null
+++ b/change/react-native-windows-85407e5a-8b6f-41fe-b146-e73c385e9b34.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "RNIsland UIA fragment root should report parents fragment root",
+  "packageName": "react-native-windows",
+  "email": "30809111+acoates-ms@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
diff --git a/change/react-native-windows-db1edeae-cd39-4b02-9676-e41d36724426.json b/change/react-native-windows-db1edeae-cd39-4b02-9676-e41d36724426.json
new file mode 100644
index 00000000000..4f047d4bba5
--- /dev/null
+++ b/change/react-native-windows-db1edeae-cd39-4b02-9676-e41d36724426.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Fix crash running on server 2016",
+  "packageName": "react-native-windows",
+  "email": "30809111+acoates-ms@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
\ No newline at end of file
diff --git a/vnext/Desktop.ABITests/packages.lock.json b/vnext/Desktop.ABITests/packages.lock.json
index 6041b76741f..fc0154d560a 100644
--- a/vnext/Desktop.ABITests/packages.lock.json
+++ b/vnext/Desktop.ABITests/packages.lock.json
@@ -10,8 +10,8 @@
       },
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.Windows.CppWinRT": {
@@ -56,10 +56,10 @@
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
@@ -98,8 +98,8 @@
           "FollyWin32": "[1.0.0, )",
           "Microsoft.JavaScript.Hermes": "[0.1.23, )",
           "Microsoft.SourceLink.GitHub": "[1.1.1, )",
-          "Microsoft.Web.WebView2": "[1.0.2651.64, )",
-          "Microsoft.WindowsAppSDK": "[1.6.240923002, )",
+          "Microsoft.Web.WebView2": "[1.0.2792.45, )",
+          "Microsoft.WindowsAppSDK": "[1.7.250109001-experimental2, )",
           "ReactCommon": "[1.0.0, )",
           "ReactNative.V8Jsi.Windows": "[0.71.8, )",
           "boost": "[1.83.0, )"
@@ -126,16 +126,16 @@
     "native,Version=v0.0/win": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -143,16 +143,16 @@
     "native,Version=v0.0/win-arm64": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -160,16 +160,16 @@
     "native,Version=v0.0/win-x64": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -177,16 +177,16 @@
     "native,Version=v0.0/win-x86": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
diff --git a/vnext/Desktop.DLL/packages.lock.json b/vnext/Desktop.DLL/packages.lock.json
index e98298f0655..4d2461f3012 100644
--- a/vnext/Desktop.DLL/packages.lock.json
+++ b/vnext/Desktop.DLL/packages.lock.json
@@ -42,7 +42,7 @@
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.Windows.SDK.BuildTools": {
@@ -52,10 +52,10 @@
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
@@ -89,8 +89,8 @@
           "FollyWin32": "[1.0.0, )",
           "Microsoft.JavaScript.Hermes": "[0.1.23, )",
           "Microsoft.SourceLink.GitHub": "[1.1.1, )",
-          "Microsoft.Web.WebView2": "[1.0.2651.64, )",
-          "Microsoft.WindowsAppSDK": "[1.6.240923002, )",
+          "Microsoft.Web.WebView2": "[1.0.2792.45, )",
+          "Microsoft.WindowsAppSDK": "[1.7.250109001-experimental2, )",
           "ReactCommon": "[1.0.0, )",
           "ReactNative.V8Jsi.Windows": "[0.71.8, )",
           "boost": "[1.83.0, )"
diff --git a/vnext/Desktop.IntegrationTests/packages.lock.json b/vnext/Desktop.IntegrationTests/packages.lock.json
index ece83bccfe5..8f49934ebdb 100644
--- a/vnext/Desktop.IntegrationTests/packages.lock.json
+++ b/vnext/Desktop.IntegrationTests/packages.lock.json
@@ -10,8 +10,8 @@
       },
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.Windows.CppWinRT": {
@@ -63,10 +63,10 @@
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
@@ -82,8 +82,8 @@
       "folly": {
         "type": "Project",
         "dependencies": {
-          "Fmt": "[1.0.0, )",
-          "boost": "[1.83.0, )"
+          "boost": "[1.83.0, )",
+          "fmt": "[1.0.0, )"
         }
       },
       "follywin32": {
@@ -100,8 +100,8 @@
           "FollyWin32": "[1.0.0, )",
           "Microsoft.JavaScript.Hermes": "[0.1.23, )",
           "Microsoft.SourceLink.GitHub": "[1.1.1, )",
-          "Microsoft.Web.WebView2": "[1.0.2651.64, )",
-          "Microsoft.WindowsAppSDK": "[1.6.240923002, )",
+          "Microsoft.Web.WebView2": "[1.0.2792.45, )",
+          "Microsoft.WindowsAppSDK": "[1.7.250109001-experimental2, )",
           "ReactCommon": "[1.0.0, )",
           "ReactNative.V8Jsi.Windows": "[0.71.8, )",
           "boost": "[1.83.0, )"
diff --git a/vnext/Desktop.UnitTests/packages.lock.json b/vnext/Desktop.UnitTests/packages.lock.json
index b023eff5948..ef770cfb039 100644
--- a/vnext/Desktop.UnitTests/packages.lock.json
+++ b/vnext/Desktop.UnitTests/packages.lock.json
@@ -46,7 +46,7 @@
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.Windows.SDK.BuildTools": {
@@ -56,10 +56,10 @@
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
@@ -80,8 +80,8 @@
       "folly": {
         "type": "Project",
         "dependencies": {
-          "boost": "[1.83.0, )",
-          "fmt": "[1.0.0, )"
+          "Fmt": "[1.0.0, )",
+          "boost": "[1.83.0, )"
         }
       },
       "follywin32": {
@@ -98,8 +98,8 @@
           "FollyWin32": "[1.0.0, )",
           "Microsoft.JavaScript.Hermes": "[0.1.23, )",
           "Microsoft.SourceLink.GitHub": "[1.1.1, )",
-          "Microsoft.Web.WebView2": "[1.0.2651.64, )",
-          "Microsoft.WindowsAppSDK": "[1.6.240923002, )",
+          "Microsoft.Web.WebView2": "[1.0.2792.45, )",
+          "Microsoft.WindowsAppSDK": "[1.7.250109001-experimental2, )",
           "ReactCommon": "[1.0.0, )",
           "ReactNative.V8Jsi.Windows": "[0.71.8, )",
           "boost": "[1.83.0, )"
diff --git a/vnext/Desktop/packages.lock.json b/vnext/Desktop/packages.lock.json
index bbff4ba4c07..e470705698b 100644
--- a/vnext/Desktop/packages.lock.json
+++ b/vnext/Desktop/packages.lock.json
@@ -26,8 +26,8 @@
       },
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.Windows.CppWinRT": {
@@ -38,11 +38,11 @@
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Direct",
-        "requested": "[1.6.240923002, )",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "requested": "[1.7.250109001-experimental2, )",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
@@ -100,17 +100,17 @@
     "native,Version=v0.0/win": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Direct",
-        "requested": "[1.6.240923002, )",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "requested": "[1.7.250109001-experimental2, )",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -118,17 +118,17 @@
     "native,Version=v0.0/win-arm64": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Direct",
-        "requested": "[1.6.240923002, )",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "requested": "[1.7.250109001-experimental2, )",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -136,17 +136,17 @@
     "native,Version=v0.0/win-x64": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Direct",
-        "requested": "[1.6.240923002, )",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "requested": "[1.7.250109001-experimental2, )",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -154,17 +154,17 @@
     "native,Version=v0.0/win-x86": {
       "Microsoft.Web.WebView2": {
         "type": "Direct",
-        "requested": "[1.0.2651.64, )",
-        "resolved": "1.0.2651.64",
+        "requested": "[1.0.2792.45, )",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Direct",
-        "requested": "[1.6.240923002, )",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "requested": "[1.7.250109001-experimental2, )",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
diff --git a/vnext/ExperimentalFeatures.props b/vnext/ExperimentalFeatures.props
index 02dae28584a..c853b5b4a69 100644
--- a/vnext/ExperimentalFeatures.props
+++ b/vnext/ExperimentalFeatures.props
@@ -1,6 +1,8 @@
 <Project>
   <PropertyGroup Condition="'$(SolutionName)'=='ReactWindows-Desktop'">
     <RnwNewArch>false</RnwNewArch>
+    <UseExperimentalWinUI3>true</UseExperimentalWinUI3>
+    <WindowsAppSdkAutoInitialize>false</WindowsAppSdkAutoInitialize>
   </PropertyGroup>
   <PropertyGroup>
     <ReactExperimentalFeaturesSet>true</ReactExperimentalFeaturesSet>
diff --git a/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionRootAutomationProvider.cpp b/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionRootAutomationProvider.cpp
index a1ab4e62227..b5c27775ce3 100644
--- a/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionRootAutomationProvider.cpp
+++ b/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionRootAutomationProvider.cpp
@@ -27,6 +27,25 @@ HRESULT __stdcall CompositionRootAutomationProvider::GetRuntimeId(SAFEARRAY **pR
 
   *pRetVal = nullptr;
 
+  if (!m_island)
+    return E_FAIL;
+
+  *pRetVal = SafeArrayCreateVector(VT_I4, 0, 3);
+  if (*pRetVal == nullptr)
+    return E_OUTOFMEMORY;
+
+  auto rgiRuntimeId = static_cast<int *>((*pRetVal)->pvData);
+
+  rgiRuntimeId[0] = UiaAppendRuntimeId;
+  rgiRuntimeId[1] = 0;
+  rgiRuntimeId[2] = 0;
+
+  if (auto rootView = m_wkRootView.get()) {
+    auto tag = rootView.RootTag();
+    rgiRuntimeId[1] = LODWORD(tag);
+    rgiRuntimeId[2] = HIDWORD(tag);
+  }
+
   return S_OK;
 }
 
@@ -153,8 +172,18 @@ HRESULT __stdcall CompositionRootAutomationProvider::get_FragmentRoot(IRawElemen
   if (pRetVal == nullptr)
     return E_POINTER;
 
-  AddRef();
-  *pRetVal = this;
+  *pRetVal = nullptr;
+
+#ifdef USE_EXPERIMENTAL_WINUI3
+  if (m_island) {
+    auto parentRoot = m_island.FragmentRootAutomationProvider();
+    auto spFragment = parentRoot.try_as<IRawElementProviderFragmentRoot>();
+    if (spFragment) {
+      *pRetVal = spFragment.detach();
+      return S_OK;
+    }
+  }
+#endif
 
   return S_OK;
 }
@@ -249,8 +278,6 @@ HRESULT __stdcall CompositionRootAutomationProvider::Navigate(
   if (pRetVal == nullptr)
     return E_POINTER;
 
-  // Fragment roots do not enable navigation to a parent or siblings; navigation among fragment roots is handled by the
-  // default window providers. Elements in fragments must navigate only to other elements within that fragment.
   if (direction == NavigateDirection_FirstChild || direction == NavigateDirection_LastChild) {
     if (auto rootView = rootComponentView()) {
       auto uiaProvider = rootView->EnsureUiaProvider();
@@ -260,6 +287,17 @@ HRESULT __stdcall CompositionRootAutomationProvider::Navigate(
         return S_OK;
       }
     }
+  } else if (direction == NavigateDirection_Parent) {
+#ifdef USE_EXPERIMENTAL_WINUI3
+    if (m_island) {
+      auto parent = m_island.ParentAutomationProvider();
+      auto spFragment = parent.try_as<IRawElementProviderFragment>();
+      if (spFragment) {
+        *pRetVal = spFragment.detach();
+        return S_OK;
+      }
+    }
+#endif
   }
   *pRetVal = nullptr;
   return S_OK;
diff --git a/vnext/Microsoft.ReactNative/ReactHost/ReactInstanceWin.cpp b/vnext/Microsoft.ReactNative/ReactHost/ReactInstanceWin.cpp
index 528c880f052..ead0aed2ad8 100644
--- a/vnext/Microsoft.ReactNative/ReactHost/ReactInstanceWin.cpp
+++ b/vnext/Microsoft.ReactNative/ReactHost/ReactInstanceWin.cpp
@@ -588,6 +588,24 @@ std::unique_ptr<facebook::jsi::PreparedScriptStore> CreatePreparedScriptStore()
 }
 
 #ifdef USE_FABRIC
+
+typedef HRESULT(__stdcall *SetThreadDescriptionFn)(HANDLE, PCWSTR);
+void SetJSThreadDescription() noexcept {
+  // Office still supports Server 2016 so we need to use Run Time Dynamic Linking and cannot just use:
+  // ::SetThreadDescription(GetCurrentThread(), L"React-Native JavaScript Thread");
+
+  auto moduleHandle = GetModuleHandleW(L"kernelbase.dll");
+  // The description is just for developer experience, so we can skip it if kernelbase isn't already loaded
+  if (!moduleHandle)
+    return;
+
+  auto proc = GetProcAddress(moduleHandle, "SetThreadDescription");
+  if (!proc)
+    return;
+
+  reinterpret_cast<SetThreadDescriptionFn>(proc)(GetCurrentThread(), L"React-Native JavaScript Thread");
+}
+
 void ReactInstanceWin::InitializeBridgeless() noexcept {
   InitUIQueue();
 
@@ -636,7 +654,7 @@ void ReactInstanceWin::InitializeBridgeless() noexcept {
                 Mso::Copy(m_whenDestroyed)));
 
             m_jsMessageThread.Load()->runOnQueueSync([&]() {
-              ::SetThreadDescription(GetCurrentThread(), L"React-Native JavaScript Thread");
+              SetJSThreadDescription();
               auto timerRegistry =
                   ::Microsoft::ReactNative::TimerRegistry::CreateTimerRegistry(m_reactContext->Properties());
               auto timerRegistryRaw = timerRegistry.get();
diff --git a/vnext/Mso.UnitTests/packages.fabric.lock.json b/vnext/Mso.UnitTests/packages.fabric.lock.json
index a9a25492661..cd90ec731f2 100644
--- a/vnext/Mso.UnitTests/packages.fabric.lock.json
+++ b/vnext/Mso.UnitTests/packages.fabric.lock.json
@@ -20,13 +20,13 @@
         "resolved": "1.6.240923002",
         "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.Windows.SDK.BuildTools": {
@@ -42,13 +42,13 @@
         "resolved": "1.6.240923002",
         "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       }
     },
@@ -59,13 +59,13 @@
         "resolved": "1.6.240923002",
         "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       }
     },
@@ -76,13 +76,13 @@
         "resolved": "1.6.240923002",
         "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       }
     },
@@ -93,13 +93,13 @@
         "resolved": "1.6.240923002",
         "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       }
     }
diff --git a/vnext/PropertySheets/WebView2.props b/vnext/PropertySheets/WebView2.props
index 833e9a74657..87113a25e7c 100644
--- a/vnext/PropertySheets/WebView2.props
+++ b/vnext/PropertySheets/WebView2.props
@@ -2,6 +2,6 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="WebView2 versioning">
       <!-- WinAppSDK 1.6+ has a dependency on Microsoft.Web.WebView2, there are a few places we need to pull in this package explicitly. -->
-      <WebView2PackageVersion>1.0.2651.64</WebView2PackageVersion>
+      <WebView2PackageVersion>1.0.2792.45</WebView2PackageVersion>
   </PropertyGroup>
 </Project>
diff --git a/vnext/ReactCommon.UnitTests/packages.lock.json b/vnext/ReactCommon.UnitTests/packages.lock.json
index d98bf049883..5be78c8a8e4 100644
--- a/vnext/ReactCommon.UnitTests/packages.lock.json
+++ b/vnext/ReactCommon.UnitTests/packages.lock.json
@@ -46,7 +46,7 @@
       },
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.Windows.SDK.BuildTools": {
@@ -56,10 +56,10 @@
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       },
@@ -75,8 +75,8 @@
       "folly": {
         "type": "Project",
         "dependencies": {
-          "boost": "[1.83.0, )",
-          "fmt": "[1.0.0, )"
+          "Fmt": "[1.0.0, )",
+          "boost": "[1.83.0, )"
         }
       },
       "follywin32": {
@@ -93,8 +93,8 @@
           "FollyWin32": "[1.0.0, )",
           "Microsoft.JavaScript.Hermes": "[0.1.23, )",
           "Microsoft.SourceLink.GitHub": "[1.1.1, )",
-          "Microsoft.Web.WebView2": "[1.0.2651.64, )",
-          "Microsoft.WindowsAppSDK": "[1.6.240923002, )",
+          "Microsoft.Web.WebView2": "[1.0.2792.45, )",
+          "Microsoft.WindowsAppSDK": "[1.7.250109001-experimental2, )",
           "ReactCommon": "[1.0.0, )",
           "ReactNative.V8Jsi.Windows": "[0.71.8, )",
           "boost": "[1.83.0, )"
@@ -111,15 +111,15 @@
     "native,Version=v0.0/win": {
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -127,15 +127,15 @@
     "native,Version=v0.0/win-arm64": {
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -143,15 +143,15 @@
     "native,Version=v0.0/win-x64": {
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }
@@ -159,15 +159,15 @@
     "native,Version=v0.0/win-x86": {
       "Microsoft.Web.WebView2": {
         "type": "Transitive",
-        "resolved": "1.0.2651.64",
+        "resolved": "1.0.2792.45",
         "contentHash": "f5sc/vcAoTCTEW7Nqzp4galAuTRguZViw8ksn+Nx2uskEBPm0/ubzy6gVjvXS/P96jLS89C8T9I0hPc417xpNg=="
       },
       "Microsoft.WindowsAppSDK": {
         "type": "Transitive",
-        "resolved": "1.6.240923002",
-        "contentHash": "7PfOz2scXU+AAM/GYge+f6s7k3DVI+R1P8MNPZQr56GOPCGw+csvcg3S5KZg47z/o04kNvWH3GKtWT1ML9tpZw==",
+        "resolved": "1.7.250109001-experimental2",
+        "contentHash": "leUsCOh27uNnygO/AtohKnnvyZ+j0vaOh4oWlmiv3zs4HuCe46O04+25GennjmmwgESvahWp+RLTGMTJgdQd0Q==",
         "dependencies": {
-          "Microsoft.Web.WebView2": "1.0.2651.64",
+          "Microsoft.Web.WebView2": "1.0.2792.45",
           "Microsoft.Windows.SDK.BuildTools": "10.0.22621.756"
         }
       }