diff --git a/.github/workflows/workflow_windows.yml b/.github/workflows/workflow_windows.yml
index 6f31574..d606298 100644
--- a/.github/workflows/workflow_windows.yml
+++ b/.github/workflows/workflow_windows.yml
@@ -7,7 +7,6 @@ jobs:
     runs-on: windows-2019
     env:
       vcpkg_ref: 14e7bb4ae24616ec54ff6b2f6ef4e8659434ea44
-      CLCACHE_CL: 'C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl_original.exe'
       BOOST_ROOT: ${{github.workspace}}/3rdparty/boost
       BOOST_URL: https://sourceforge.net/projects/boost/files/boost/1.72.0/boost_1_72_0.tar.bz2/download
       QT_ROOT: ${{github.workspace}}/3rdparty/qt
@@ -94,19 +93,6 @@ jobs:
       with:
         python-version: '3.9.1'
 
-    - name: Install clcache
-      run: |
-        pip install clcache
-        Rename-Item -Path 'C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe' -NewName 'cl_original.exe'
-        Rename-Item -Path 'C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe.config' -NewName 'cl_original.exe.config'
-        cp 'C:/hostedtoolcache/windows/Python/3.9.1/x64/Scripts/clcache.exe' 'C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe'
-
-    - uses: actions/cache@v1
-      with:
-       path: C:/Users/runneradmin/clcache
-       key: ${{ runner.os }}-clcache-${{ github.sha }}
-       restore-keys: ${{ runner.os }}-clcache-
-
     - name: Build libtiff
       run: |
         cd thirdparty/tiff-4.0.3
@@ -114,7 +100,6 @@ jobs:
         cp libtiff/tiffconf.vc.h libtiff/tiffconf.h
         cd prj/LibTIFF
         $env:Path += ';C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/MSBuild/Current/Bin'
-        $env:CLCACHE_CL = '${{ env.CLCACHE_CL }}'
         msbuild LibTIFF.vcxproj /p:PlatformToolset=v142 /p:Platform=x64 /p:Configuration=Release -maxcpucount:3
 
     - name: Build mypaint/libmypaint
@@ -125,7 +110,6 @@ jobs:
         python generate.py mypaint-brush-settings-gen.h brushsettings-gen.h
         mkdir build | Out-Null
         cd build
-        $env:CLCACHE_CL = '${{ env.CLCACHE_CL }}'
         cmake ../ -G 'Visual Studio 16 2019' -Ax64 -Djson-c_DIR='C:/vcpkg/installed/x64-windows-static/share/json-c/' -DJSON-C_INCLUDE_DIR='C:/vcpkg/installed/x64-windows-static/include/json-c/'
         cmake --build . --config Release
         cp C:/vcpkg/installed/x64-windows-static/lib/json-c.lib .
@@ -138,7 +122,6 @@ jobs:
         cd superlu
         mkdir build | Out-Null
         cd build
-        $env:CLCACHE_CL = '${{ env.CLCACHE_CL }}'
         cmake ../ -G 'Visual Studio 16 2019' -Ax64 -DXSDK_ENABLE_Fortran=OFF -Denable_tests=OFF
         cmake --build . --config Release
 
@@ -168,7 +151,6 @@ jobs:
         cd toonz
         mkdir build | Out-Null
         cd build
-        $env:CLCACHE_CL = '${{ env.CLCACHE_CL }}'
         $env:BOOST_ROOT = '${{ env.BOOST_ROOT }}'
         $env:QT_PATH = '${{ env.QT_ROOT }}/Qt5.15.2_wintab/5.15.2_wintab/msvc2019_64'
         cmake ../sources -G 'Visual Studio 16 2019' -Ax64 -DQT_PATH="$env:QT_PATH" -DOpenCV_DIR='C:/vcpkg/installed/x64-windows/share/opencv' -DBOOST_ROOT="$env:BOOST_ROOT" -DWITH_WINTAB=ON