diff --git a/.pipelines/uwp-ci.yml b/.pipelines/uwp-ci.yml
index ab420270df..5e5c7d3555 100644
--- a/.pipelines/uwp-ci.yml
+++ b/.pipelines/uwp-ci.yml
@@ -22,7 +22,7 @@ variables:
 
 pool:
   name: Azure Pipelines
-  vmImage: windows-2019
+  vmImage: windows-2022
 
 steps:
 - task: NuGetToolInstaller@0
diff --git a/.pipelines/winui3-ci.yml b/.pipelines/winui3-ci.yml
index 4949873da9..99eb9fb546 100644
--- a/.pipelines/winui3-ci.yml
+++ b/.pipelines/winui3-ci.yml
@@ -22,7 +22,7 @@ variables:
 
 pool:
   name: Azure Pipelines
-  vmImage: windows-2019
+  vmImage: windows-latest
 
 steps:
 - task: NuGetToolInstaller@1
@@ -50,6 +50,17 @@ steps:
     targetType: 'inline'
     script: |
       choco install windows-sdk-10-version-1809-all
+      
+      $winget = (Get-Command winget -ErrorAction SilentlyContinue)
+      if (-not $winget) {
+        Write-Host 'winget not found. Installing App Installer (DesktopAppInstaller) silently...'
+        
+        Invoke-WebRequest -Uri "https://aka.ms/getwinget" -OutFile "$env:Temp\AppInstaller.msixbundle"
+        Add-AppxPackage -Path "$env:Temp\AppInstaller.msixbundle"
+      }
+
+      
+      winget install --id Microsoft.WindowsSDK.10.0.22000 -e --silent --accept-package-agreements --accept-source-agreements
 
 - task: VSBuild@1
   name: VSBuild4
diff --git a/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj b/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj
index 85b4be1e4f..9f1066f1f8 100644
--- a/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj
+++ b/source/dotnet/Samples/ImageRendererServer/ImageRendererServer.csproj
@@ -11,6 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore" Version="2.2.0" />
+	<PackageReference Include="Microsoft.AspNetCore.Server.Kestrel.Core" Version="2.3.6" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.Server.IIS" Version="2.2.6" />
     <PackageReference Include="Microsoft.AspNetCore.Server.IISIntegration" Version="2.2.1" />
diff --git a/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject.wapproj b/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject.wapproj
index 984f52f530..6812e320be 100644
--- a/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject.wapproj
+++ b/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject.wapproj
@@ -43,7 +43,7 @@
     <DefaultLanguage>en-US</DefaultLanguage>
     <PackageCertificateKeyFile>AdaptiveCards.Sample.WPFVisualizer.PackageProject_TemporaryKey.pfx</PackageCertificateKeyFile>
     <EntryPointProjectUniqueName>..\WPFVisualizer\AdaptiveCards.Sample.WPFVisualizer.csproj</EntryPointProjectUniqueName>
-    <PackageCertificateThumbprint>3bd5fc86b707a862b32aa301f34e37c77de44a11</PackageCertificateThumbprint>
+    <PackageCertificateThumbprint>EC31E8FE4FFAAA30604BDACABF17F0CEAA1F8CC5</PackageCertificateThumbprint>
     <AppxPackageSigningEnabled>True</AppxPackageSigningEnabled>
   </PropertyGroup>
   <ItemGroup>
diff --git a/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject_TemporaryKey.pfx b/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject_TemporaryKey.pfx
index 14b43ae563..258001754a 100644
Binary files a/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject_TemporaryKey.pfx and b/source/dotnet/Samples/WPFVisualizer.PackageProject/AdaptiveCards.Sample.WPFVisualizer.PackageProject_TemporaryKey.pfx differ