diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 0c9893730..360d9ac1e 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -1,5 +1,4 @@
 name: windows
-
 on:
   push:
     branches: [master]
@@ -29,11 +28,9 @@ on:
     - 'tools/**'
     - '!tools/pnnx/**'
     - 'examples/**'
-
 concurrency:
   group: windows-${{ github.ref }}
   cancel-in-progress: true
-
 permissions:
   contents: read
 
@@ -56,18 +53,16 @@ jobs:
 
     env:
       UseMultiToolTask: true
-      
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: true
-
+        
     - name: Install VS 2017 (v141) Build Tools
       if: matrix.vs-version == 'vs2017'
       run: |
         $vsInstallPath = & "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -latest -property installationPath
         Start-Process -FilePath "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vs_installer.exe" -ArgumentList "modify --installPath `"$vsInstallPath`" --add Microsoft.VisualStudio.Component.VC.v141.x86.x64 --quiet --norestart --nocache" -Wait
-
     - name: Install and Setup VS 2015 (v140) Build Tools
       if: matrix.vs-version == 'vs2015'
       run: |
@@ -100,7 +95,6 @@ jobs:
         cmake -T ${{ matrix.toolset-version }},host=x64 -A x64 -DCMAKE_INSTALL_PREFIX="$env:GITHUB_WORKSPACE\protobuf-install" -Dprotobuf_BUILD_TESTS=OFF -Dprotobuf_MSVC_STATIC_RUNTIME=OFF -DNCNN_BUILD_TESTS=ON ../cmake
         cmake --build . --config Release -j 4
         cmake --build . --config Release --target install
-
     - name: cache-swiftshader
       if: matrix.vs-version != 'vs2015' && matrix.vs-version != 'vs2017'
       id: cache-swiftshader
@@ -108,7 +102,6 @@ jobs:
       with:
         path: swiftshader-install
         key: swiftshader-${{ matrix.vs-version }}-x64-install-20240622
-
     - name: checkout-swiftshader
       if: matrix.vs-version != 'vs2015' && matrix.vs-version != 'vs2017' && steps.cache-swiftshader.outputs.cache-hit != 'true'
       uses: actions/checkout@v4
@@ -116,13 +109,11 @@ jobs:
         repository: google/swiftshader
         path: swiftshader
         ref: de870ac7518fe2b6bb651ecc22fc36647cf7b986
-
     - name: checkout-swiftshader-submodules
       if: matrix.vs-version != 'vs2015' && matrix.vs-version != 'vs2017' && steps.cache-swiftshader.outputs.cache-hit != 'true'
       run: |
         cd swiftshader
         git -c submodule."third_party/git-hooks".update=none submodule update --init --recursive
-
     - name: swiftshader
       if: matrix.vs-version != 'vs2015' && matrix.vs-version != 'vs2017' && steps.cache-swiftshader.outputs.cache-hit != 'true'
       run: |
@@ -138,7 +129,6 @@ jobs:
         mkdir build-x64; cd build-x64
         cmake -T ${{ matrix.toolset-version }},host=x64 -A x64 -Dprotobuf_DIR="$env:GITHUB_WORKSPACE\protobuf-install\cmake" -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
         cmake --build . --config Release -j 4
-
     - name: x64-test
       if: matrix.vs-version != 'vs2015' && matrix.vs-version != 'vs2017'
       run: |