diff --git a/.github/workflows/kcpp-build-release-win-cuda.yaml b/.github/workflows/kcpp-build-release-win-cuda.yaml
index 2c4e335a1e08f..24cb3de5369ba 100644
--- a/.github/workflows/kcpp-build-release-win-cuda.yaml
+++ b/.github/workflows/kcpp-build-release-win-cuda.yaml
@@ -25,7 +25,7 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j $((${env:NUMBER_OF_PROCESSORS} - 1))
+          cmake --build . --config Release -j 1
 
       - name: Save artifact
         uses: actions/upload-artifact@v3
diff --git a/.github/workflows/kcpp-build-release-win-cuda12.yaml b/.github/workflows/kcpp-build-release-win-cuda12.yaml
index ed5993b916cd3..7e4e5354715e9 100644
--- a/.github/workflows/kcpp-build-release-win-cuda12.yaml
+++ b/.github/workflows/kcpp-build-release-win-cuda12.yaml
@@ -25,7 +25,7 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j $((${env:NUMBER_OF_PROCESSORS} - 1))
+          cmake --build . --config Release -j 1
 
       - name: Save artifact
         uses: actions/upload-artifact@v3
diff --git a/.github/workflows/kcpp-build-release-win-full-cu12.yaml b/.github/workflows/kcpp-build-release-win-full-cu12.yaml
index d8de3a729f3fb..6c4e9a80aad6f 100644
--- a/.github/workflows/kcpp-build-release-win-full-cu12.yaml
+++ b/.github/workflows/kcpp-build-release-win-full-cu12.yaml
@@ -58,7 +58,7 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j $((${env:NUMBER_OF_PROCESSORS} - 1))
+          cmake --build . --config Release -j 1
           mv bin/Release/koboldcpp_cublas.dll ../koboldcpp_cublas.dll
           cd ..
 
diff --git a/.github/workflows/kcpp-build-release-win-full.yaml b/.github/workflows/kcpp-build-release-win-full.yaml
index 33fc613177069..ba84dc88ef748 100644
--- a/.github/workflows/kcpp-build-release-win-full.yaml
+++ b/.github/workflows/kcpp-build-release-win-full.yaml
@@ -58,7 +58,7 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j $((${env:NUMBER_OF_PROCESSORS} - 1))
+          cmake --build . --config Release -j 1
           mv bin/Release/koboldcpp_cublas.dll ../koboldcpp_cublas.dll
           cd ..
 
diff --git a/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml b/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml
index 69aec6f59b92e..351736948d7ed 100644
--- a/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml
+++ b/.github/workflows/kcpp-build-release-win-oldcpu-full.yaml
@@ -58,7 +58,7 @@ jobs:
           mkdir build
           cd build
           cmake .. -DLLAMA_CUBLAS=ON -DLLAMA_AVX2=OFF -DCMAKE_SYSTEM_VERSION="10.0.19041.0"
-          cmake --build . --config Release -j ${env:NUMBER_OF_PROCESSORS}
+          cmake --build . --config Release -j 1
           mv bin/Release/koboldcpp_cublas.dll ../koboldcpp_cublas.dll
           cd ..