把下面的代码粘贴到一个空文本文档里面（以.txt结尾的文件），重命名为*.bat（*为随意字符），双击执行即可。（注意：请确定“控制面板--文件夹选项--查看--隐藏已知文件扩展名”前的勾选已经去掉。）@echo offecho 正在清除系统--文件，请稍等......del /f /s /q %systemdrive%/*.tmpdel /f /s /q %systemdrive%/*._mpdel /f /s /q %systemdrive%/*.logdel /f /s /q %systemdrive%/*.giddel /f /s /q %systemdrive%/*.chkdel /f /s /q %systemdrive%/*.olddel /f /s /q %systemdrive%/recycled/*.*del /f /s /q %windir%/*.bakdel /f /s /q %windir%/prefetch/*.*rd /s /q %windir%/temp & md %windir%/tempdel /f /q %userprofile%/cookies/*.*del /f /q %userprofile%/recent/*.*del /f /s /q "%userprofile%/Local Settings/Temporary Internet Files/*.*"del /f /s /q "%userprofile%/Local Settings/Temp/*.*"del /f /s /q "%userprofile%/recent/*.*"echo 清除系统LJ完成！echo. & pause
