diff --git a/.github/workflows/build-and-sign-sequential.yml b/.github/workflows/build-and-sign-sequential.yml
index d5b48a4..4f04670 100644
--- a/.github/workflows/build-and-sign-sequential.yml
+++ b/.github/workflows/build-and-sign-sequential.yml
@@ -53,6 +53,52 @@ jobs:
         
         choco install innosetup -y
         if ($LASTEXITCODE -ne 0) { exit 1 }
+
+    - name: Detect Windows Kits version (WDF/UMDF headers)
+      shell: pwsh
+      run: |
+        $kitsRoot = Join-Path ${env:ProgramFiles(x86)} "Windows Kits"
+        if (-not (Test-Path $kitsRoot)) {
+          Write-Error "Windows Kits root not found: $kitsRoot"
+          exit 1
+        }
+
+        $includeRoots =
+          Get-ChildItem -Path $kitsRoot -Directory |
+          ForEach-Object { Join-Path $_.FullName "Include" } |
+          Where-Object { Test-Path $_ }
+
+        if (-not $includeRoots -or $includeRoots.Count -eq 0) {
+          Write-Error "No Windows Kits Include directories found under: $kitsRoot"
+          exit 1
+        }
+
+        $candidates = foreach ($includeRoot in $includeRoots) {
+          Get-ChildItem -Path $includeRoot -Directory -ErrorAction SilentlyContinue |
+            Where-Object { Test-Path (Join-Path $_.FullName "wdf\umdf\wudfwdm.h") } |
+            ForEach-Object {
+              [PSCustomObject]@{
+                Version = $_.Name
+                IncludeRoot = $includeRoot
+              }
+            }
+        }
+
+        $best = $candidates | Sort-Object -Property Version -Descending | Select-Object -First 1
+        $kitVersion = $best.Version
+
+        if (-not $kitVersion) {
+          Write-Error "Could not find any Windows Kits version containing wdf\umdf\wudfwdm.h under: $kitsRoot"
+          Write-Output "Discovered Include roots:"
+          $includeRoots | ForEach-Object { Write-Output ("- " + $_) }
+          exit 1
+        }
+
+        $windowsSdkDir = (Split-Path $best.IncludeRoot -Parent) + "\"
+        Write-Output "Using WindowsTargetPlatformVersion: $kitVersion"
+        Write-Output "Using WindowsSdkDir: $windowsSdkDir"
+        "WINDOWS_TARGET_PLATFORM_VERSION=$kitVersion" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+        "WINDOWS_SDK_DIR=$windowsSdkDir" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
         
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
@@ -71,7 +117,7 @@ jobs:
         $vddSln = "Virtual Display Driver (HDR)/MTTVDD.sln"
         if (Test-Path $vddSln) {
           Write-Output "Found VDD solution: $vddSln"
-          msbuild $vddSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=ARM64 /verbosity:minimal
+          msbuild $vddSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=ARM64 /p:WindowsSdkDir=$env:WINDOWS_SDK_DIR /p:WindowsTargetPlatformVersion=$env:WINDOWS_TARGET_PLATFORM_VERSION /verbosity:minimal
           if ($LASTEXITCODE -eq 0) {
             Write-Output "✅ ARM64 VDD build completed successfully"
             
@@ -105,7 +151,7 @@ jobs:
           Write-Output "Building ARM64 VAD with validation disabled..."
           
           # Build with validation disabled to avoid x86 tool conflicts with ARM64 outputs
-          msbuild $vadSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=ARM64 /p:EnableInfVerif=false /p:RunApiValidator=false /verbosity:minimal
+          msbuild $vadSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=ARM64 /p:WindowsSdkDir=$env:WINDOWS_SDK_DIR /p:WindowsTargetPlatformVersion=$env:WINDOWS_TARGET_PLATFORM_VERSION /p:EnableInfVerif=false /p:RunApiValidator=false /verbosity:minimal
           
           if ($LASTEXITCODE -eq 0) {
             Write-Output "✅ ARM64 VAD build completed successfully!"
@@ -133,7 +179,7 @@ jobs:
         $vddSln = "Virtual Display Driver (HDR)/MTTVDD.sln"
         if (Test-Path $vddSln) {
           Write-Output "Found VDD solution: $vddSln"
-          msbuild $vddSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=x64 /verbosity:minimal
+          msbuild $vddSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=x64 /p:WindowsSdkDir=$env:WINDOWS_SDK_DIR /p:WindowsTargetPlatformVersion=$env:WINDOWS_TARGET_PLATFORM_VERSION /verbosity:minimal
           if ($LASTEXITCODE -eq 0) {
             Write-Output "✅ x64 VDD build completed successfully"
             
@@ -162,7 +208,7 @@ jobs:
         $vadSln = "Virtual-Audio-Driver (Latest Stable)/VirtualAudioDriver.sln"
         if (Test-Path $vadSln) {
           Write-Output "Found VAD solution: $vadSln"
-          msbuild $vadSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=x64 /verbosity:minimal
+          msbuild $vadSln /p:Configuration=$env:BUILD_CONFIGURATION /p:Platform=x64 /p:WindowsSdkDir=$env:WINDOWS_SDK_DIR /p:WindowsTargetPlatformVersion=$env:WINDOWS_TARGET_PLATFORM_VERSION /verbosity:minimal
           if ($LASTEXITCODE -eq 0) {
             Write-Output "✅ x64 VAD build completed successfully"
             
diff --git a/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj b/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj
index a4f0dc2..a28b6bf 100644
--- a/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj	
+++ b/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj	
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
@@ -38,9 +38,6 @@
     <ClCompile Include="Driver.cpp" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\..\Downloads\wudfwdm.h">
-      <DeploymentContent>true</DeploymentContent>
-    </ClInclude>
     <ClInclude Include="Driver.h" />
     <ClInclude Include="Trace.h" />
   </ItemGroup>
diff --git a/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj.filters b/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj.filters
index 63e6887..804b5c6 100644
--- a/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj.filters	
+++ b/Virtual Display Driver (HDR)/MttVDD/MttVDD.vcxproj.filters	
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <Filter Include="Source Files">
@@ -30,9 +30,6 @@
     <ClInclude Include="Trace.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\..\Downloads\wudfwdm.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Driver.cpp">