常用的bat批处理脚本大全(精选)

批处理脚本（Batch files）是Windows操作系统中用于自动化任务的脚本。以下是一些常用的批处理脚本示例，它们可以帮助你执行各种常见的任务：

1. 清理临时文件

@echo off
echo Cleaning temporary files...
del /q /f /s %temp%\*
echo Done!
pause

2. 创建备份

@echo off
set "source=C:\MyFolder"
set "backup=D:\Backup\MyFolder"
robocopy "%source%" "%backup%" /e /z /r:3 /w:5
echo Backup completed.
pause

3. 禁用Windows更新

@echo off
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" /v AUOptions /t REG_DWORD /d 1 /f
echo Windows Update has been disabled.
pause

4. 启用Windows更新

@echo off
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" /v AUOptions /t REG_DWORD /d 3 /f
echo Windows Update has been enabled.
pause

5. 更改桌面背景

@echo off
set "wallpaper=C:\Pictures\MyWallpaper.jpg"
reg add "HKCU\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "%wallpaper%" /f
echo Desktop background changed.
pause

6. 显示/隐藏文件扩展名

@echo off
set "hidden=0"
reg query "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" | findstr /i "HideFileExt" > nul
if %errorlevel% equ 0 (
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v HideFileExt /t REG_DWORD /d %hidden% /f
) else (
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v HideFileExt /t REG_DWORD /d 2 /f
)
echo File extensions %if%hidden.
pause

7. 禁用/启用Ctrl+Alt+Del登录界面

@echo off
set "policy=HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System"
set "value=DisableCAD"
reg query "%policy%" | findstr /i "%value%" > nul
if %errorlevel% equ 0 (
    reg delete "%policy%" /v "%value%" /f
    echo Ctrl+Alt+Del login screen has been enabled.
) else (
    reg add "%policy%" /v "%value%" /t REG_DWORD /d 1 /f
    echo Ctrl+Alt+Del login screen has been disabled.
)
pause

8. 检查网络连接

@echo off
ping -n 4 127.0.0.1 > nul
if %errorlevel% equ 0 (
    echo You are connected to the network.
) else (
    echo You are not connected to the network.
)
pause

9. 显示系统信息

@echo off
for /f "skip=1 tokens=2 delims=[]" %%i in ('systeminfo /fo table /s') do set "%%i"
echo.
echo System Information:
echo OS Name: %OSName%
echo OS Version: %OSVersion%
echo Installed RAM: %TotalPhys%
echo.
pause

10. 强制关闭计算机

@echo off
shutdown /s /f /t 0
echo Computer will shut down immediately.
pause

请注意，一些脚本可能需要管理员权限才能执行，特别是那些涉及更改系统设置的脚本。在运行任何脚本之前，请确保你理解脚本的内容和它将执行的操作，以避免不必要的系统问题。此外，对于涉及修改注册表的脚本，请谨慎使用，因为不正确的注册表更改可能会导致系统不稳定或无法启动。