diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 262f01b..f767e65 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -47,6 +47,10 @@ jobs:
             goarch: amd64
           - goos: darwin
             goarch: arm64
+          - goos: windows
+            goarch: amd64
+          - goos: windows
+            goarch: arm64
 
     steps:
       - name: Checkout code
@@ -58,6 +62,7 @@ jobs:
           go-version: '1.21'
 
       - name: Build binary
+        id: build
         working-directory: codex-wrapper
         env:
           GOOS: ${{ matrix.goos }}
@@ -66,14 +71,18 @@ jobs:
         run: |
           VERSION=${GITHUB_REF#refs/tags/}
           OUTPUT_NAME=codex-wrapper-${{ matrix.goos }}-${{ matrix.goarch }}
+          if [ "${{ matrix.goos }}" = "windows" ]; then
+            OUTPUT_NAME="${OUTPUT_NAME}.exe"
+          fi
           go build -ldflags="-s -w -X main.version=${VERSION}" -o ${OUTPUT_NAME} .
           chmod +x ${OUTPUT_NAME}
+          echo "artifact_path=codex-wrapper/${OUTPUT_NAME}" >> $GITHUB_OUTPUT
 
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
           name: codex-wrapper-${{ matrix.goos }}-${{ matrix.goarch }}
-          path: codex-wrapper/codex-wrapper-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: ${{ steps.build.outputs.artifact_path }}
 
   release:
     name: Create Release
@@ -92,7 +101,7 @@ jobs:
         run: |
           mkdir -p release
           find artifacts -type f -name "codex-wrapper-*" -exec mv {} release/ \;
-          cp install.sh release/
+          cp install.sh install.ps1 install.bat release/
           ls -la release/
 
       - name: Create Release
diff --git a/README.md b/README.md
index 8ad17f6..417a8d8 100644
--- a/README.md
+++ b/README.md
@@ -238,6 +238,33 @@ python3 install.py --module dev
 bash install.sh
 ```
 
+#### Windows
+
+Windows installs place `codex-wrapper.exe` in `%USERPROFILE%\bin`.
+
+```powershell
+# PowerShell (recommended)
+powershell -ExecutionPolicy Bypass -File install.ps1
+
+# Batch (cmd)
+install.bat
+```
+
+**Add to PATH** (if installer doesn't detect it):
+
+```powershell
+# PowerShell - persistent for current user
+[Environment]::SetEnvironmentVariable('PATH', "$HOME\bin;" + [Environment]::GetEnvironmentVariable('PATH','User'), 'User')
+
+# PowerShell - current session only
+$Env:PATH = "$HOME\bin;$Env:PATH"
+```
+
+```batch
+REM cmd.exe - persistent for current user
+setx PATH "%USERPROFILE%\bin;%PATH%"
+```
+
 ---
 
 ## Workflow Selection Guide
diff --git a/README_CN.md b/README_CN.md
index 1196fe0..961fb70 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -235,6 +235,33 @@ python3 install.py --module dev
 bash install.sh
 ```
 
+#### Windows 系统
+
+Windows 系统会将 `codex-wrapper.exe` 安装到 `%USERPROFILE%\bin`。
+
+```powershell
+# PowerShell（推荐）
+powershell -ExecutionPolicy Bypass -File install.ps1
+
+# 批处理（cmd）
+install.bat
+```
+
+**添加到 PATH**（如果安装程序未自动检测）：
+
+```powershell
+# PowerShell - 永久添加（当前用户）
+[Environment]::SetEnvironmentVariable('PATH', "$HOME\bin;" + [Environment]::GetEnvironmentVariable('PATH','User'), 'User')
+
+# PowerShell - 仅当前会话
+$Env:PATH = "$HOME\bin;$Env:PATH"
+```
+
+```batch
+REM cmd.exe - 永久添加（当前用户）
+setx PATH "%USERPROFILE%\bin;%PATH%"
+```
+
 ---
 
 ## 工作流选择指南
diff --git a/codex-wrapper/main.go b/codex-wrapper/main.go
index 5edee6f..920191e 100644
--- a/codex-wrapper/main.go
+++ b/codex-wrapper/main.go
@@ -11,6 +11,7 @@ import (
 	"os"
 	"os/exec"
 	"os/signal"
+	"runtime"
 	"sort"
 	"strconv"
 	"strings"
@@ -925,21 +926,30 @@ func (b *tailBuffer) String() string {
 
 func forwardSignals(ctx context.Context, cmd *exec.Cmd, logErrorFn func(string)) {
 	sigCh := make(chan os.Signal, 1)
-	signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
+	signals := []os.Signal{syscall.SIGINT}
+	if runtime.GOOS != "windows" {
+		signals = append(signals, syscall.SIGTERM)
+	}
+	signal.Notify(sigCh, signals...)
 
 	go func() {
 		defer signal.Stop(sigCh)
 		select {
 		case sig := <-sigCh:
 			logErrorFn(fmt.Sprintf("Received signal: %v", sig))
-			if cmd.Process != nil {
-				cmd.Process.Signal(syscall.SIGTERM)
-				time.AfterFunc(time.Duration(forceKillDelay)*time.Second, func() {
-					if cmd.Process != nil {
-						cmd.Process.Kill()
-					}
-				})
+			if cmd.Process == nil {
+				return
 			}
+			if runtime.GOOS == "windows" {
+				_ = cmd.Process.Kill()
+				return
+			}
+			_ = cmd.Process.Signal(syscall.SIGTERM)
+			time.AfterFunc(time.Duration(forceKillDelay)*time.Second, func() {
+				if cmd.Process != nil {
+					_ = cmd.Process.Kill()
+				}
+			})
 		case <-ctx.Done():
 		}
 	}()
@@ -962,6 +972,11 @@ func terminateProcess(cmd *exec.Cmd) *time.Timer {
 		return nil
 	}
 
+	if runtime.GOOS == "windows" {
+		_ = cmd.Process.Kill()
+		return nil
+	}
+
 	_ = cmd.Process.Signal(syscall.SIGTERM)
 
 	return time.AfterFunc(time.Duration(forceKillDelay)*time.Second, func() {
diff --git a/install.bat b/install.bat
new file mode 100644
index 0000000..0f3f888
--- /dev/null
+++ b/install.bat
@@ -0,0 +1,114 @@
+@echo off
+setlocal enabledelayedexpansion
+
+set "EXIT_CODE=0"
+set "REPO=cexll/myclaude"
+set "VERSION=latest"
+set "OS=windows"
+
+call :detect_arch
+if errorlevel 1 goto :fail
+
+set "BINARY_NAME=codex-wrapper-%OS%-%ARCH%.exe"
+set "URL=https://github.com/%REPO%/releases/%VERSION%/download/%BINARY_NAME%"
+set "TEMP_FILE=%TEMP%\codex-wrapper-%ARCH%-%RANDOM%.exe"
+set "DEST_DIR=%USERPROFILE%\bin"
+set "DEST=%DEST_DIR%\codex-wrapper.exe"
+
+echo Downloading codex-wrapper for %ARCH% ...
+echo   %URL%
+call :download
+if errorlevel 1 goto :fail
+
+if not exist "%TEMP_FILE%" (
+    echo ERROR: download failed to produce "%TEMP_FILE%".
+    goto :fail
+)
+
+echo Installing to "%DEST%" ...
+if not exist "%DEST_DIR%" (
+    mkdir "%DEST_DIR%" >nul 2>nul || goto :fail
+)
+
+move /y "%TEMP_FILE%" "%DEST%" >nul 2>nul
+if errorlevel 1 (
+    echo ERROR: unable to place file in "%DEST%".
+    goto :fail
+)
+
+"%DEST%" --version >nul 2>nul
+if errorlevel 1 (
+    echo ERROR: installation verification failed.
+    goto :fail
+)
+
+echo.
+echo codex-wrapper installed successfully at:
+echo   %DEST%
+
+set "PATH_CHECK=;%PATH%;"
+echo !PATH_CHECK! | findstr /I /C:";%DEST_DIR%;" >nul
+if errorlevel 1 (
+    echo.
+    echo %DEST_DIR% is not in your PATH.
+    echo Add it for the current user with:
+    echo   setx PATH "%%USERPROFILE%%\bin;%%PATH%%"
+    echo Then restart your terminal to use codex-wrapper globally.
+)
+
+goto :cleanup
+
+:detect_arch
+set "ARCH=%PROCESSOR_ARCHITECTURE%"
+if defined PROCESSOR_ARCHITEW6432 set "ARCH=%PROCESSOR_ARCHITEW6432%"
+
+if /I "%ARCH%"=="AMD64" (
+    set "ARCH=amd64"
+    exit /b 0
+) else if /I "%ARCH%"=="ARM64" (
+    set "ARCH=arm64"
+    exit /b 0
+) else (
+    echo ERROR: unsupported architecture "%ARCH%". 64-bit Windows on AMD64 or ARM64 is required.
+    set "EXIT_CODE=1"
+    exit /b 1
+)
+
+:download
+where curl >nul 2>nul
+if %errorlevel%==0 (
+    echo Using curl ...
+    curl -fL --retry 3 --connect-timeout 10 "%URL%" -o "%TEMP_FILE%"
+    if errorlevel 1 (
+        echo ERROR: curl download failed.
+        set "EXIT_CODE=1"
+        exit /b 1
+    )
+    exit /b 0
+)
+
+where powershell >nul 2>nul
+if %errorlevel%==0 (
+    echo Using PowerShell ...
+    powershell -NoLogo -NoProfile -Command " $ErrorActionPreference='Stop'; try { [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor 3072 -bor 768 -bor 192 } catch {} ; $wc = New-Object System.Net.WebClient; $wc.DownloadFile('%URL%','%TEMP_FILE%') "
+    if errorlevel 1 (
+        echo ERROR: PowerShell download failed.
+        set "EXIT_CODE=1"
+        exit /b 1
+    )
+    exit /b 0
+)
+
+echo ERROR: neither curl nor PowerShell is available to download the installer.
+set "EXIT_CODE=1"
+exit /b 1
+
+:fail
+echo Installation failed.
+set "EXIT_CODE=1"
+goto :cleanup
+
+:cleanup
+if exist "%TEMP_FILE%" del /f /q "%TEMP_FILE%" >nul 2>nul
+set "CODE=%EXIT_CODE%"
+endlocal & exit /b %CODE%
diff --git a/install.ps1 b/install.ps1
new file mode 100644
index 0000000..9bc488d
--- /dev/null
+++ b/install.ps1
@@ -0,0 +1,66 @@
+[CmdletBinding()]
+param()
+
+$ErrorActionPreference = 'Stop'
+$ProgressPreference = 'Continue'
+$tempFile = $null
+
+function Get-Architecture {
+    $arch = if ($env:PROCESSOR_ARCHITEW6432) { $env:PROCESSOR_ARCHITEW6432 } else { $env:PROCESSOR_ARCHITECTURE }
+    switch ($arch.ToLower()) {
+        'amd64' { 'amd64' }
+        'x86' { throw 'Unsupported architecture: x86 (64-bit Windows is required).' }
+        'arm64' { 'arm64' }
+        'aarch64' { 'arm64' }
+        default { throw "Unsupported architecture: $arch" }
+    }
+}
+
+function Write-Step {
+    param([string] $Status, [int] $Percent)
+    Write-Progress -Activity 'Installing codex-wrapper' -Status $Status -PercentComplete $Percent
+    Write-Host $Status
+}
+
+try {
+    Write-Step 'Detecting CPU architecture...' 5
+    $arch = Get-Architecture
+    $url = "https://github.com/cexll/myclaude/releases/latest/download/codex-wrapper-windows-$arch.exe"
+
+    $tempFile = Join-Path ([IO.Path]::GetTempPath()) "codex-wrapper-$arch.exe"
+    $homeBin = Join-Path $HOME 'bin'
+    $destination = Join-Path $homeBin 'codex-wrapper.exe'
+
+    [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
+
+    Write-Step "Downloading codex-wrapper from $url ..." 25
+    Invoke-WebRequest -Uri $url -OutFile $tempFile -UseBasicParsing -ErrorAction Stop
+
+    Write-Step "Installing to $destination ..." 65
+    New-Item -ItemType Directory -Path $homeBin -Force | Out-Null
+    Move-Item -LiteralPath $tempFile -Destination $destination -Force
+
+    Write-Step 'Verifying installation...' 90
+    & $destination --version | Out-Null
+
+    Write-Step 'codex-wrapper installed successfully.' 100
+    Write-Progress -Activity 'Installing codex-wrapper' -Completed -Status 'Done'
+    Write-Host "Installed to $destination"
+
+    $normalizedBin = ($homeBin.TrimEnd('\') -replace '/','\').ToLower()
+    $pathEntries = ($env:PATH -split ';') | Where-Object { $_ } | ForEach-Object { ($_ -replace '/','\').TrimEnd('\').ToLower() }
+    if (-not ($pathEntries -contains $normalizedBin)) {
+        Write-Warning "$homeBin is not in your PATH."
+        Write-Host 'Add it permanently with:'
+        Write-Host "  [Environment]::SetEnvironmentVariable('PATH', '$homeBin;' + [Environment]::GetEnvironmentVariable('PATH','User'), 'User')"
+        Write-Host 'Then restart your shell to pick up the updated PATH.'
+    }
+} catch {
+    Write-Progress -Activity 'Installing codex-wrapper' -Completed -Status 'Failed'
+    Write-Error "Installation failed: $($_.Exception.Message)"
+    exit 1
+} finally {
+    if ($tempFile -and (Test-Path $tempFile)) {
+        Remove-Item -LiteralPath $tempFile -Force -ErrorAction SilentlyContinue
+    }
+}