diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 9b898f2ac3da34..c576cd7058b28d 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -17,127 +17,17 @@ env:
   TI_TEST_OFFLINE_CACHE: ${{ github.event.schedule == '0 18 * * *' && '1' || '' }}
 
 jobs:
-  show_environ:
-    name: Show Environment Variables
-    # Disable this workflow on forks
-    if: github.repository_owner == 'taichi-dev'
-    runs-on: [self-hosted, Linux]
-    steps:
-    - name: Environment Variables
-      run: env
-    - name: Github Object
-      run: |
-        cat <<'EOF'
-        ${{ toJson(github) }}
-        EOF
-
-  check_files:
-    name: Check files
-    # Disable this workflow on forks
-    if: github.repository_owner == 'taichi-dev'
-    outputs:
-      run_job: ${{ steps.check_files.outputs.run_job }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 2
-
-      - name: check modified files
-        id: check_files
-        run: |
-          echo "Concurrency group: ${{ github.event.number || github.run_id }}"
-          echo "=============== list modified files ==============="
-          git diff --name-only @^
-
-          chore_files=( LICENSE CONTRIBUTING.md README.md netlify.toml )
-          chore_dirs=( docs )
-          run_job=false
-
-          for file in $(git diff --name-only @^); do
-            is_chore=false
-
-            for chore_file in ${chore_files[*]}; do
-              [[ ${file} == ${chore_file} ]] && is_chore=true && break
-            done
-
-            for chore_dir in ${chore_dirs[*]}; do
-              [[ ${file} == ${chore_dir}/* ]] && is_chore=true && break
-            done
-
-            if ! ${is_chore}; then
-              run_job=true
-              break
-            fi
-          done
-
-          if ${run_job}; then
-            echo "::set-output name=run_job::true"
-          else
-            echo "::set-output name=run_job::false"
-          fi
-
-
   build_and_test_cpu_windows:
-    name: Build and Test Windows (CPU)
-    needs: check_files
-    strategy:
-      matrix:
-        include:
-          - os: windows-2019
-            llvmVer : '15'
-          - os: windows-2019
-            llvmVer : '10'
+    name: Meh
     timeout-minutes: ${{ github.event.schedule != '0 18 * * *' && 90 || 180 }}
     runs-on: windows-2019
     permissions:
       packages: read
       contents: read
     steps:
-      - uses: actions/checkout@v2
-        with:
-          submodules: 'recursive'
-
-      - name: Get Build Cache
-        uses: actions/cache@v3
-        if: needs.check_files.outputs.run_job == 'true'
-        with:
-          path: ${{ env.LocalAppData }}/build-cache
-          key: ccache-win64-cpu-${{ github.sha }}
-          restore-keys: |
-            build-cache-win64-cpu-
-
-      - name: Get Docker Images
-        shell: pwsh
-        if: needs.check_files.outputs.run_job == 'true'
-        run: |
-          . .github/workflows/common-utils.ps1
-          echo ${{ secrets.GITHUB_TOKEN }} | Invoke docker login ghcr.io -u ${{ github.actor }} --password-stdin
-          Invoke docker pull ghcr.io/taichi-dev/taichidev-cpu-windows:v0.0.1
-
-      # TODO: split build and test
       - name: Build and Test
         shell: pwsh
-        if: needs.check_files.outputs.run_job == 'true'
-        run: |
-          . .github/workflows/common-utils.ps1
-          PrepareBuildCache
-          docker create --name taichi_build_test \
-            -e TI_LITE_TEST \
-            -e TI_TEST_OFFLINE_CACHE \
-            ghcr.io/taichi-dev/taichidev-cpu-windows:v0.0.1 \
-            C:/taichi/.github/workflows/scripts/win_build_test_cpu.ps1 -llvmVer ${{ matrix.llvmVer }}
-          tar -cf - ../${{ github.event.repository.name }} --mode u=+rwx,g=+rwx,o=+rwx | docker cp - taichi_build_test:C:/
-          docker start -a taichi_build_test
-          rm -rf ccache_cache
-          docker cp taichi_build_test:C:/taichi/ccache_cache ccache_cache
-
-      # - name: Save wheel if test failed
-      #   if: failure() && steps.build_and_test.conclusion == 'failure'
-      #   uses: actions/upload-artifact@v3
-      #   with:
-      #     name: broken-wheel
-      #     path: dist/*
-      #     retention-days: 7
-
+        run: >-
+          docker run -i
+          mcr.microsoft.com/dotnet/framework/sdk:4.8-windowsservercore-ltsc2019
+          powershell -Command 'gci env:*'