diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ce1960f69..778c36c7e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -18,7 +18,7 @@ jobs:
           nsis-version: 3.08
       - name: Build IME Text Service
         run: |
-          .\build.bat
+          .\build_github_ci.bat
       - name: Build the installer
         run: |
           cmd /C "C:\Program Files (x86)\NSIS\Bin\makensis.exe" ".\installer\installer.nsi"
diff --git a/README.md b/README.md
index b48ad7ec2..e763dbf92 100644
--- a/README.md
+++ b/README.md
@@ -18,14 +18,14 @@
 
 -   https://github.com/dongyuwei/PIME/releases
 
-## Build and compile with `Visual Studio 17 2022`
+## Build and compile with Visual Studio 2019
 
 1. 安装 cmake（tested with `cmake version 3.25.0-rc2`）
-2. 项目根目录下执行 `./build.bat`, 这个是用来构建PIME Text Service，对应于 C++ 部分代码。
-3. 使用 NSIS 构建安装文件：
+2. 项目根目录下执行 ./build.bat
+3. 使用 NSIS 构建 install exe 文件：
     1. Compile NSI scripts
-    2. File -> Load script... -> installer/installer.nsi, 这个用于打包 Python 输入法代码，编译成 .exe 文件。
-4. CI 构建可参考 appveyor.yml 及 .github/workflows/ci.yaml
+    2. File -> Load script... -> installer/installer.nsi
+4. CI 构建可参考 appveyor.yml
 
 ## 更好的 IPC 架構
 
diff --git a/build.bat b/build.bat
index 9c3d2e618..a153a1907 100644
--- a/build.bat
+++ b/build.bat
@@ -1,5 +1,5 @@
-cmake . -Bbuild -G "Visual Studio 17 2022" -A Win32
+cmake . -Bbuild -G"Visual Studio 16 2019" -A Win32
 cmake --build build --config Release
 
-cmake . -Bbuild64 -G "Visual Studio 17 2022"  -A x64
-cmake --build build64 --config Release --target PIMETextService
\ No newline at end of file
+cmake . -Bbuild64 -G"Visual Studio 16 2019" -A x64
+cmake --build build64 --config Release --target PIMETextService
diff --git a/build_github_ci.bat b/build_github_ci.bat
new file mode 100644
index 000000000..9c3d2e618
--- /dev/null
+++ b/build_github_ci.bat
@@ -0,0 +1,5 @@
+cmake . -Bbuild -G "Visual Studio 17 2022" -A Win32
+cmake --build build --config Release
+
+cmake . -Bbuild64 -G "Visual Studio 17 2022"  -A x64
+cmake --build build64 --config Release --target PIMETextService
\ No newline at end of file
diff --git a/build_vs2019.bat b/build_vs2019.bat
deleted file mode 100644
index a153a1907..000000000
--- a/build_vs2019.bat
+++ /dev/null
@@ -1,5 +0,0 @@
-cmake . -Bbuild -G"Visual Studio 16 2019" -A Win32
-cmake --build build --config Release
-
-cmake . -Bbuild64 -G"Visual Studio 16 2019" -A x64
-cmake --build build64 --config Release --target PIMETextService