diff --git a/.ado/TestWACK.ps1 b/.ado/TestWACK.ps1
new file mode 100644
index 00000000000..0421f35f3a1
--- /dev/null
+++ b/.ado/TestWACK.ps1
@@ -0,0 +1,26 @@
+param([string]$Platform, [string]$Configuration, [string]$OutputPath)
+
+$exceptions = @(
+    'API __C_specific_handler in kernel32.dll is not supported for this application type. Microsoft.ReactNative.dll calls this API.'
+);
+
+if (!(Test-Path $OutputPath)) {
+    mkdir -Path $OutputPath
+}
+
+if ($Configuration -eq 'Release') {
+    $appxPath = Resolve-Path $PSScriptRoot\..\packages\playground\windows\AppPackages\playground\playground_1.0.0.0_${Platform}_Test\playground_1.0.0.0_$Platform.appx
+    gci $appxPath
+
+    & "C:\Program Files (x86)\Windows Kits\10\App Certification Kit\appcert.exe" test -appxpackagepath $appxPath -reportoutputpath $OutputPath\result.xml
+
+    $xml = [xml] (gc $OutputPath\result.xml)
+
+    $supportedApiTest = ($xml.REPORT.REQUIREMENTS.REQUIREMENT | Where-Object -Property TITLE -EQ  "Supported API test").TEST;
+    $errors = $supportedApiTest.MESSAGES.MESSAGE.TEXT | Where-Object { $_ -notin $exceptions }
+
+    if ($errors.Length -ne 0) {
+        throw $errors
+    }
+}
+
diff --git a/.ado/windows-vs-pr.yml b/.ado/windows-vs-pr.yml
index 89049d94f61..21c2c58087f 100644
--- a/.ado/windows-vs-pr.yml
+++ b/.ado/windows-vs-pr.yml
@@ -261,7 +261,17 @@ jobs:
             /p:PreferredToolArchitecture=$(MSBuildPreferredToolArchitecture)
             /p:PlatformToolset=$(MSBuildPlatformToolset)
             /p:BaseIntDir=$(BaseIntDir)
-            /p:AppxPackageSigningEnabled=false
+
+      - powershell: .ado/TestWACK.ps1 $(BuildPlatform) $(BuildConfiguration) $(Build.StagingDirectory)\WACK
+        displayName: Test WACK
+
+      - task: PublishBuildArtifacts@1
+        displayName: Upload WACK report
+        condition:  succeededOrFailed()
+        inputs:
+          pathtoPublish: '$(Build.StagingDirectory)/WACK'
+          artifactName: 'WACK report $(BuildPlatform) $(BuildConfiguration)'
+
 
       - task: NuGetCommand@2
         displayName: NuGet restore - Playground Win32
diff --git a/packages/playground/windows/playground/Package.appxmanifest b/packages/playground/windows/playground/Package.appxmanifest
index 9e461608a9c..57381ff490f 100644
--- a/packages/playground/windows/playground/Package.appxmanifest
+++ b/packages/playground/windows/playground/Package.appxmanifest
@@ -7,8 +7,8 @@
   IgnorableNamespaces="uap mp">
 
  <Identity
-    Name="a752ebd1-71f2-4731-af80-c81e1782cc2b"
-    Publisher="CN=playground"
+    Name="RNPlayground"
+    Publisher="CN=Microsoft"
     Version="1.0.0.0" />
 
   <mp:PhoneIdentity PhoneProductId="a752ebd1-71f2-4731-af80-c81e1782cc2b" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
diff --git a/packages/playground/windows/playground/Playground.vcxproj b/packages/playground/windows/playground/Playground.vcxproj
index 69cd5fe4443..deec2955767 100644
--- a/packages/playground/windows/playground/Playground.vcxproj
+++ b/packages/playground/windows/playground/Playground.vcxproj
@@ -16,7 +16,6 @@
     <WindowsTargetPlatformVersion Condition=" '$(WindowsTargetPlatformVersion)' == '' ">10.0.18362.0</WindowsTargetPlatformVersion>
     <WindowsTargetPlatformMinVersion>10.0.16299.0</WindowsTargetPlatformMinVersion>
     <AppxPackageSigningEnabled>False</AppxPackageSigningEnabled>
-    <PackageCertificateThumbprint>867D41FE5091AED426000143497EA4DFC29A8097</PackageCertificateThumbprint>
     <PackageCertificateKeyFile>Playground_TemporaryKey.pfx</PackageCertificateKeyFile>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
@@ -174,6 +173,15 @@
   <PropertyGroup>
     <BundleEntryFile>Samples/rntester.tsx</BundleEntryFile>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <AppxPackageSigningEnabled>True</AppxPackageSigningEnabled>
+    <GenerateAppInstallerFile>False</GenerateAppInstallerFile>
+    <AppxPackageSigningTimestampDigestAlgorithm>SHA256</AppxPackageSigningTimestampDigestAlgorithm>
+    <AppxAutoIncrementPackageRevision>True</AppxAutoIncrementPackageRevision>
+    <GenerateTestArtifacts>True</GenerateTestArtifacts>
+    <AppxBundle>Never</AppxBundle>
+    <HoursBetweenUpdateChecks>0</HoursBetweenUpdateChecks>
+</PropertyGroup>
   <ImportGroup Label="ReactNativeWindowsTargets">
     <Import Project="$(ReactNativeWindowsDir)\PropertySheets\External\Microsoft.ReactNative.Uwp.CppApp.targets" Condition="Exists('$(ReactNativeWindowsDir)\PropertySheets\External\Microsoft.ReactNative.Uwp.CppApp.targets')" />
   </ImportGroup>
@@ -194,5 +202,6 @@
     </PropertyGroup>
     <Error Condition="!Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.200615.7\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Windows.CppWinRT.2.0.200615.7\build\native\Microsoft.Windows.CppWinRT.props'))" />
     <Error Condition="!Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.200615.7\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Windows.CppWinRT.2.0.200615.7\build\native\Microsoft.Windows.CppWinRT.targets'))" />
-    <Error Condition="!Exists('..\packages\$(WinUIPackageName).$(WinUIPackageVersion)\build\native\$(WinUIPackageName).targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\$(WinUIPackageName).$(WinUIPackageVersion)\build\native\$(WinUIPackageName).targets'))" />  </Target>
+    <Error Condition="!Exists('..\packages\$(WinUIPackageName).$(WinUIPackageVersion)\build\native\$(WinUIPackageName).targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\$(WinUIPackageName).$(WinUIPackageVersion)\build\native\$(WinUIPackageName).targets'))" />
+  </Target>
 </Project>
diff --git a/packages/playground/windows/playground/Playground_TemporaryKey.pfx b/packages/playground/windows/playground/Playground_TemporaryKey.pfx
index a65eac5d773..328efc71c52 100644
Binary files a/packages/playground/windows/playground/Playground_TemporaryKey.pfx and b/packages/playground/windows/playground/Playground_TemporaryKey.pfx differ