diff --git a/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.cpp b/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.cpp
index 72b235117d..4a28bfe527 100644
--- a/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.cpp
+++ b/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.cpp
@@ -3,9 +3,7 @@
 
 #include "pch.h"
 #include "Task.h"
-#if __has_include("Task.g.cpp")
 #include "Task.g.cpp"
-#endif
 
 using namespace winrt;
 using namespace winrt::Windows::ApplicationModel::Background;
@@ -13,17 +11,18 @@ using namespace winrt::Windows::Storage;
 
 namespace winrt::Microsoft::Windows::ApplicationModel::Background::UniversalBGTask::implementation
 {
-    inline constexpr CLSID IID_IBackgroundTask = { 2098451764, 64786, 17358, 140, 34, 234, 31, 241, 60, 6, 223 };
+    inline constexpr CLSID IID_IBackgroundTask{ 2098451764, 64786, 17358, 140, 34, 234, 31, 241, 60, 6, 223 };
+
     void Task::Run(winrt::Windows::ApplicationModel::Background::IBackgroundTaskInstance taskInstance)
     {
-        winrt::hstring lookupStr = winrt::to_hstring(taskInstance.Task().TaskId());
-        ApplicationDataContainer localSettings = ApplicationData::Current().LocalSettings();
-        auto values = localSettings.Values();
-        auto lookupobj = values.Lookup(lookupStr);
-        winrt::guid comClsId = winrt::unbox_value<winrt::guid>(lookupobj);
+        winrt::hstring lookupKey{ winrt::to_hstring(taskInstance.Task().TaskId()) };
+        ApplicationDataContainer localSettings{ ApplicationData::Current().LocalSettings() };
+        auto values{ localSettings.Values() };
+        auto lookupValue{ values.Lookup(lookupKey) };
+        winrt::guid comClsId{ winrt::unbox_value<winrt::guid>(lookupValue) };
 
-        winrt::Windows::ApplicationModel::Background::IBackgroundTask bgTask = nullptr;
-        winrt::hresult hr = CoCreateInstance(comClsId, nullptr, CLSCTX_LOCAL_SERVER, IID_IBackgroundTask, reinterpret_cast<void**>(&bgTask));
+        winrt::Windows::ApplicationModel::Background::IBackgroundTask bgTask;
+        winrt::hresult hr{ CoCreateInstance(comClsId, nullptr, CLSCTX_LOCAL_SERVER, IID_IBackgroundTask, reinterpret_cast<void**>(&bgTask)) };
         bgTask.Run(taskInstance);
     }
 }
diff --git a/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.idl b/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.idl
index bcc31e8c74..326df8b8e1 100644
--- a/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.idl
+++ b/dev/WindowsAppRuntime_UniversalBGTaskDLL/Task.idl
@@ -1,10 +1,12 @@
 // Copyright (c) Microsoft Corporation and Contributors.
 // Licensed under the MIT License.
 
-
-
 namespace Microsoft.Windows.ApplicationModel.Background.UniversalBGTask
 {
+    [contractversion(1)]
+    apicontract UniversalBGTaskContract{};
+
+    [contract(UniversalBGTaskContract, 1)]
     [default_interface]
     runtimeclass Task : Windows.ApplicationModel.Background.IBackgroundTask
     {
diff --git a/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.def b/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.def
index d04a02ea81..0e3b54f49a 100644
--- a/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.def
+++ b/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.def
@@ -1,3 +1,6 @@
+; Copyright (c) Microsoft Corporation. All rights reserved.
+; Licensed under the MIT License. See LICENSE in the project root for license information.
+
 EXPORTS
 DllCanUnloadNow = WINRT_CanUnloadNow                    PRIVATE
 DllGetActivationFactory = WINRT_GetActivationFactory    PRIVATE
diff --git a/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.vcxproj b/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.vcxproj
index 241cc92f61..62b8914e26 100644
--- a/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.vcxproj
+++ b/dev/WindowsAppRuntime_UniversalBGTaskDLL/WindowsAppRuntime_UniversalBGTaskDLL.vcxproj
@@ -1,23 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.props" Condition="Exists('..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.props')" />
-  <Import Project="..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.props" Condition="Exists('..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.props')" />
-  <Import Project="..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.props')" />
-  <PropertyGroup Label="Globals">
-    <CppWinRTOptimized>true</CppWinRTOptimized>
-    <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
-    <MinimalCoreWin>true</MinimalCoreWin>
-    <ProjectGuid>{0c4405e6-029e-4363-8273-a9e1fcf057de}</ProjectGuid>
-    <RootNamespace>Microsoft.Windows.ApplicationModel.Background.UniversalBGTask</RootNamespace>
-    <DefaultLanguage>en-US</DefaultLanguage>
-    <MinimumVisualStudioVersion>16.0</MinimumVisualStudioVersion>
-    <AppContainerApplication>false</AppContainerApplication>
-    <ApplicationTypeRevision>10.0</ApplicationTypeRevision>
-    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
-    <DesktopCompatible>true</DesktopCompatible>
-    <UseWinUI>true</UseWinUI>
-  </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.props')" />
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -44,12 +28,22 @@
       <Platform>ARM64</Platform>
     </ProjectConfiguration>
   </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <ProjectGuid>{0c4405e6-029e-4363-8273-a9e1fcf057de}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>Microsoft.Windows.ApplicationModel.Background.UniversalBGTask</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <CppWinRTModernIDL>true</CppWinRTModernIDL>
+    <CppWinRTFastAbi>true</CppWinRTFastAbi>
+    <CppWinRTOptimized>true</CppWinRTOptimized>
+    <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>
+    <CppWinRTNamespaceMergeDepth>9</CppWinRTNamespaceMergeDepth>
+  </PropertyGroup>
   <PropertyGroup Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
-    <GenerateManifest>false</GenerateManifest>
-    <DesktopCompatible>true</DesktopCompatible>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
     <UseDebugLibraries>true</UseDebugLibraries>
@@ -91,15 +85,9 @@
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
-      <PrecompiledHeaderOutputFile>$(IntDir)pch.pch</PrecompiledHeaderOutputFile>
-      <WarningLevel>Level4</WarningLevel>
-      <AdditionalOptions>%(AdditionalOptions) /bigobj</AdditionalOptions>
-      <PreprocessorDefinitions>_WINRT_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalUsingDirectories>$(WindowsSDK_WindowsMetadata);$(AdditionalUsingDirectories)</AdditionalUsingDirectories>
     </ClCompile>
     <Link>
-      <SubSystem>Console</SubSystem>
-      <GenerateWindowsMetadata>true</GenerateWindowsMetadata>
+      <SubSystem>Windows</SubSystem>
       <ModuleDefinitionFile>WindowsAppRuntime_UniversalBGTaskDLL.def</ModuleDefinitionFile>
     </Link>
   </ItemDefinitionGroup>
@@ -112,10 +100,6 @@
     <ClCompile>
       <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
-    <Link>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-    </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClInclude Include="pch.h" />
@@ -140,11 +124,6 @@
     <None Include="packages.config" />
     <None Include="WindowsAppRuntime_UniversalBGTaskDLL.def" />
   </ItemGroup>
-  <ItemGroup>
-    <Text Include="readme.txt">
-      <DeploymentContent>false</DeploymentContent>
-    </Text>
-  </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="WindowsAppRuntime_UniversalBGTaskDLL.rc">
       <AdditionalIncludeDirectories>$(RepoRoot);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -152,21 +131,13 @@
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
-    <Import Project="..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.targets" Condition="Exists('..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.targets')" />
-    <Import Project="..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.targets" Condition="Exists('..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.targets')" />
-    <Import Project="..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.targets" Condition="Exists('..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.targets')" />
-    <Import Project="..\..\Packages\Microsoft.Windows.ImplementationLibrary.1.0.220914.1\build\native\Microsoft.Windows.ImplementationLibrary.targets" Condition="Exists('..\..\Packages\Microsoft.Windows.ImplementationLibrary.1.0.220914.1\build\native\Microsoft.Windows.ImplementationLibrary.targets')" />
+    <Import Project="$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.targets" Condition="Exists('$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.props'))" />
-    <Error Condition="!Exists('..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\Packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.targets'))" />
-    <Error Condition="!Exists('..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.props'))" />
-    <Error Condition="!Exists('..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\Packages\Microsoft.Windows.SDK.BuildTools.10.0.22621.756\build\Microsoft.Windows.SDK.BuildTools.targets'))" />
-    <Error Condition="!Exists('..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.props'))" />
-    <Error Condition="!Exists('..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\Packages\Microsoft.WindowsAppSDK.1.5.240311000\build\native\Microsoft.WindowsAppSDK.targets'))" />
-    <Error Condition="!Exists('..\..\Packages\Microsoft.Windows.ImplementationLibrary.1.0.220914.1\build\native\Microsoft.Windows.ImplementationLibrary.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\Packages\Microsoft.Windows.ImplementationLibrary.1.0.220914.1\build\native\Microsoft.Windows.ImplementationLibrary.targets'))" />
+    <Error Condition="!Exists('$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.props'))" />
+    <Error Condition="!Exists('$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NugetPackageDirectory)\Microsoft.Windows.CppWinRT.$(MicrosoftWindowsCppWinRTVersion)\build\native\Microsoft.Windows.CppWinRT.targets'))" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/dev/WindowsAppRuntime_UniversalBGTaskDLL/packages.config b/dev/WindowsAppRuntime_UniversalBGTaskDLL/packages.config
index df5f654653..315eb1aca6 100644
--- a/dev/WindowsAppRuntime_UniversalBGTaskDLL/packages.config
+++ b/dev/WindowsAppRuntime_UniversalBGTaskDLL/packages.config
@@ -1,7 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.230706.1" targetFramework="native" />
-  <package id="Microsoft.Windows.ImplementationLibrary" version="1.0.220914.1" targetFramework="native" />
-  <package id="Microsoft.Windows.SDK.BuildTools" version="10.0.22621.756" targetFramework="native" />
-  <package id="Microsoft.WindowsAppSDK" version="1.5.240311000" targetFramework="native" />
-</packages>
\ No newline at end of file
+</packages>
diff --git a/dev/WindowsAppRuntime_UniversalBGTaskDLL/pch.h b/dev/WindowsAppRuntime_UniversalBGTaskDLL/pch.h
index 5a962aa2dc..5a9e6e458a 100644
--- a/dev/WindowsAppRuntime_UniversalBGTaskDLL/pch.h
+++ b/dev/WindowsAppRuntime_UniversalBGTaskDLL/pch.h
@@ -2,29 +2,9 @@
 // Licensed under the MIT License.
 
 #pragma once
-#include <windows.h>
-#include <unknwn.h>
-#include <restrictederrorinfo.h>
-#include <hstring.h>
 
-// Undefine GetCurrentTime macro to prevent
-// conflict with Storyboard::GetCurrentTime
-#undef GetCurrentTime
+#include <windows.h>
 
 #include <winrt/Windows.Foundation.h>
 #include <winrt/Windows.Foundation.Collections.h>
-#include <winrt/Windows.ApplicationModel.Activation.h>
 #include <winrt/Windows.Storage.h>
-#include <winrt/Windows.UI.Xaml.Interop.h>
-#include <winrt/Microsoft.UI.Composition.h>
-#include <winrt/Microsoft.UI.Xaml.h>
-#include <winrt/Microsoft.UI.Xaml.Controls.h>
-#include <winrt/Microsoft.UI.Xaml.Controls.Primitives.h>
-#include <winrt/Microsoft.UI.Xaml.Data.h>
-#include <winrt/Microsoft.UI.Xaml.Interop.h>
-#include <winrt/Microsoft.UI.Xaml.Markup.h>
-#include <winrt/Microsoft.UI.Xaml.Media.h>
-#include <winrt/Microsoft.UI.Xaml.Navigation.h>
-#include <winrt/Microsoft.UI.Xaml.Shapes.h>
-#include <winrt/Microsoft.UI.Dispatching.h>
-#include <wil/cppwinrt_helpers.h>
diff --git a/dev/WindowsAppRuntime_UniversalBGTaskDLL/readme.txt b/dev/WindowsAppRuntime_UniversalBGTaskDLL/readme.txt
deleted file mode 100644
index 312359a40d..0000000000
--- a/dev/WindowsAppRuntime_UniversalBGTaskDLL/readme.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-========================================================================
-    WindowsAppRuntime_UniversalBGTaskDLL Project Overview
-========================================================================
-
-This project demonstrates how to get started authoring Windows Runtime
-classes directly with standard C++, using the Windows App SDK and
-C++/WinRT packages to generate implementation headers from interface
-(IDL) files.  The generated Windows Runtime component binary and WinMD
-files should then be bundled with the app consuming them.
-
-Steps:
-1. Create an interface (IDL) file to define your Windows Runtime class,
-    its default interface, and any other interfaces it implements.
-2. Build the project once to generate module.g.cpp, module.h.cpp, and
-    implementation templates under the "Generated Files" folder, as
-    well as skeleton class definitions under "Generated Files\sources".
-3. Use the skeleton class definitions for reference to implement your
-    Windows Runtime classes.
-
-========================================================================
-Learn more about Windows App SDK here:
-https://docs.microsoft.com/windows/apps/windows-app-sdk/
-Learn more about WinUI3 here:
-https://docs.microsoft.com/windows/apps/winui/winui3/
-Learn more about C++/WinRT here:
-http://aka.ms/cppwinrt/
-========================================================================
diff --git a/docs/Coding-Guidelines/GettingStarted.md b/docs/Coding-Guidelines/GettingStarted.md
index b5b5aa15cf..a0ec95b5cd 100644
--- a/docs/Coding-Guidelines/GettingStarted.md
+++ b/docs/Coding-Guidelines/GettingStarted.md
@@ -52,6 +52,7 @@ or via the browser:
       * Windows 10 SDK (10.0.20348.0)
       * Windows 10 SDK (10.0.22000.0)
       * Windows 10 SDK (10.0.22621.0)
+      * Windows 10 SDK (10.0.26100.0)
       * Windows Universal C Runtime
       * and more! See [VisualStudio2022.vsconfig](https://github.com/microsoft/WindowsAppSDK/blob/develop/docs/Coding-Guidelines/VisualStudio2022.vsconfig) for the complete list
 
diff --git a/docs/Coding-Guidelines/VisualStudio2022.vsconfig b/docs/Coding-Guidelines/VisualStudio2022.vsconfig
index 9992a03d1d..77386b14e8 100644
--- a/docs/Coding-Guidelines/VisualStudio2022.vsconfig
+++ b/docs/Coding-Guidelines/VisualStudio2022.vsconfig
@@ -41,7 +41,6 @@
     "Microsoft.VisualStudio.Component.VC.Tools.x86.x64",
     "Microsoft.VisualStudio.Component.Graphics.Tools",
     "Microsoft.VisualStudio.Component.VC.DiagnosticTools",
-    "Microsoft.VisualStudio.Component.Windows10SDK.19041",
     "Microsoft.VisualStudio.Component.ManagedDesktop.Prerequisites",
     "Microsoft.ComponentGroup.Blend",
     "Microsoft.VisualStudio.Component.DotNetModelBuilder",
@@ -57,7 +56,9 @@
     "Microsoft.VisualStudio.Component.VC.TestAdapterForBoostTest",
     "Microsoft.VisualStudio.Component.VC.TestAdapterForGoogleTest",
     "Microsoft.VisualStudio.Component.VC.ASAN",
+    "Microsoft.VisualStudio.Component.Windows11SDK.26100",
     "Microsoft.VisualStudio.Component.Windows11SDK.22000",
+    "Microsoft.VisualStudio.Component.Windows10SDK.19041",
     "Microsoft.VisualStudio.Component.Windows10SDK.18362",
     "Microsoft.VisualStudio.Component.VC.Tools.ARM64EC",
     "Microsoft.VisualStudio.Workload.NativeDesktop",
diff --git a/tools/DevCheck/DevCheck.ps1 b/tools/DevCheck/DevCheck.ps1
index e3b0010f8b..2eaa74545a 100644
--- a/tools/DevCheck/DevCheck.ps1
+++ b/tools/DevCheck/DevCheck.ps1
@@ -163,6 +163,7 @@ Set-StrictMode -Version 3.0
 $ErrorActionPreference = "Stop"
 
 $global:issues = 0
+$global:issues_test_certificate_thumbprint_not_found = 0
 
 $global:isadmin = $null
 
@@ -171,6 +172,11 @@ $global:vswhere_url = ''
 
 $global:dependency_paths = ('dev', 'test', 'installer', 'tools')
 
+function Get-Issues
+{
+    return $global:issues + $global:issues_test_certificate_thumbprint_not_found
+}
+
 function Get-SettingsFile
 {
     if ([string]::IsNullOrEmpty($SettingsFile))
@@ -700,7 +706,7 @@ function Test-WindowsSDKInstall
     }
     elseif ($InstallWindowsSDK -eq $true)
     {
-        Write-Warning "WARNING: Windows SDK $($version) not found. Installing..."
+        Write-Warning "Windows SDK $($version) not found. Installing..."
         $null = Install-WindowsSDK $version $url
     }
     else
@@ -723,7 +729,7 @@ function Test-DevTestPfx
     if (-not(Test-Path -Path $pfx_thumbprint -PathType Leaf))
     {
         Write-Host "Test certificate thumbprint $pfx_thumbprint...Not Found"
-        $global:issues++
+        $global:issues_test_certificate_thumbprint_not_found = 1
         return $false
     }
 
@@ -841,7 +847,7 @@ function Repair-DevTestPfx
     $pfx = Join-Path $user 'winappsdk.certificate.test.pfx'
     $export_pfx = Export-PfxCertificate -Cert $cert_personal -FilePath $pfx -Password $password
 
-    # Delete the personal certiicate
+    # Delete the personal certificate
     Remove-Item -Path $cert_personal -DeleteKey
 
     $ok = $true
@@ -997,12 +1003,12 @@ function Test-TAEFServiceVersion
 
     if ($cmp -lt 0)
     {
-        Write-Warning "WARNING: TAEF service older than the expected version (expected=$expected_taef_version, actual=$actual_taef_version)"
+        Write-Warning "TAEF service older than the expected version (expected=$expected_taef_version, actual=$actual_taef_version)"
         return 'OlderVersion'
     }
     elseif ($cmp -gt 0)
     {
-        Write-Warning "WARNING: TAEF service newer than the expected version (expected=$expected_taef_version, actual=$actual_taef_version)"
+        Write-Warning "TAEF service newer than the expected version (expected=$expected_taef_version, actual=$actual_taef_version)"
         return 'NewerVersion'
     }
     else
@@ -1617,7 +1623,7 @@ if (($CheckAll -ne $false) -Or ($CheckVisualStudio -ne $false))
         $null = Test-VisualStudioComponents
     }
     $null = Test-WindowsSDKInstall '10.0.17763.0' [uri]'https://go.microsoft.com/fwlink/p/?LinkID=2033908'
-    #TODO Uncomment to require new SDK: $null = Test-WindowsSDKInstall '10.0.26100.0' [uri]'https://go.microsoft.com/fwlink/?linkid=2272610'
+    $null = Test-WindowsSDKInstall '10.0.26100.0' [uri]'https://go.microsoft.com/fwlink/?linkid=2272610'
 }
 
 if (($CheckAll -ne $false) -Or ($CheckTestPfx -ne $false))
@@ -1706,12 +1712,15 @@ if (($RemoveAll -ne $false) -Or ($RemoveTestPfx -ne $false))
     $null = Remove-DevTestPfx
 }
 
-if ($global:issues -eq 0)
+$issues_count = Get-Issues
+if ($issues_count -eq 0)
 {
     Write-Output "Coding time!"
+    Exit 0
 }
 else
 {
-    $n = $global:issues
+    $n = $issues_count
     Write-Output "$n issue(s) detected"
+    Exit 1
 }