diff --git a/.github/workflows/ctests.yml b/.github/workflows/ctests.yml
index 32e3798..8c3aaed 100644
--- a/.github/workflows/ctests.yml
+++ b/.github/workflows/ctests.yml
@@ -8,30 +8,42 @@ on:
 
 jobs:
   build-others:
-    name: ${{ matrix.platform.name }} C++${{matrix.config.cxx_version}} ${{matrix.architecture}}
+    name: ${{ matrix.platform.name }} C++${{matrix.config.cxx_version}}
     runs-on: ${{ matrix.platform.os }}
 
     strategy:
       fail-fast: false
       matrix:
         platform:
-        - { name: Windows VS2019, ls: dir, os: windows-2019,  flags: -DCMAKE_BUILD_TYPE=Debug }
-        - { name: Windows VS2022, ls: dir, os: windows-2022,  flags: -DCMAKE_BUILD_TYPE=Debug }
-        - { name: Windows Clang,  ls: dir, os: windows-2022,  flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ }
-        - { name: Windows GCC,    ls: dir, os: windows-2022,  flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ }
-        - { name: Linux Clang,    ls: ls,  os: ubuntu-latest, flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ }
-        - { name: Linux GCC,      ls: ls,  os: ubuntu-latest, flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ }
-        - { name: MacOS XCode,    ls: ls,  os: macos-latest,  flags: -DCMAKE_BUILD_TYPE=Debug }
-        - { name: MacOS Clang,    ls: ls,  os: macos-latest,  flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ }
+        # - { name: Windows VS2019, gp: where, ls: dir, os: windows-2019,   flags: -DCMAKE_BUILD_TYPE=Debug }
+        - { name: Windows VS2022, gp: where, ls: dir, os: windows-2022,   flags: -DCMAKE_BUILD_TYPE=Debug }
+        - { name: Windows Clang,  gp: where, ls: dir, os: windows-latest, flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER="C\Program Files\LLVM\bin\clang" -DCMAKE_CXX_COMPILER="C\Program Files\LLVM\bin\clang++" }
+        - { name: Windows GCC,    gp: where, ls: dir, os: windows-latest, flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ }
+        # - { name: Linux Clang,    gp: which, ls: ls,  os: ubuntu-latest,  flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ }
+        # - { name: Linux GCC,      gp: which, ls: ls,  os: ubuntu-latest,  flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ }
+        # - { name: MacOS XCode,    gp: which, ls: ls,  os: macos-latest,   flags: -DCMAKE_BUILD_TYPE=Debug }
+        # - { name: MacOS Clang,    gp: which, ls: ls,  os: macos-latest,   flags: -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ }
         config:
         - { cxx_version: 20 }
-        - { cxx_version: 23 }
-        architecture: [x64, x86]
+        # - { cxx_version: 23 }
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
-    - name: System Info
+    - name: check gcc
+      run: gcc --version && where gcc
+
+    - name: check clang
+      run: clang --version && where clang
+
+    - name: Add clang path to $PATH env
+      if: runner.os == 'Windows'
+      run: |
+        echo "PATH=$PATH:C:\msys64\mingw32\bin" >> $GITHUB_ENV
+        echo "PATH=$PATH:C:\msys64\mingw64\bin" >> $GITHUB_ENV
+        echo "PATH=$PATH:C:\Program Files\LLVM\bin" >> $GITHUB_ENV
+
+    - name: Config
       run: cmake -S tests -B tests ${{matrix.platform.flags}} -DCMAKE_CXX_STANDARD=${{matrix.config.cxx_version}}
 
     - name: Build