diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml
index f2a5f23..08b61a0 100755
--- a/.github/workflows/build-windows.yml
+++ b/.github/workflows/build-windows.yml
@@ -35,8 +35,16 @@ jobs:
 
     - name: 🔧 安装 MinGW
       run: |
-        sudo apt-get update
-        sudo apt-get install -y mingw-w64
+        # 在 GitHub 托管 runner（有 sudo）与 act/自托管容器（无 sudo）均可运行
+        if command -v sudo >/dev/null 2>&1; then
+          sudo apt-get update
+          sudo apt-get install -y mingw-w64
+        else
+          echo "sudo 不存在，按 root 用户直接执行 apt-get"
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update || apt update
+          apt-get install -y mingw-w64 || apt install -y mingw-w64
+        fi
 
     - name: 📦 编译 libcore.dll
       working-directory: libcore