批处理批量清空系统事件（事件查看器）

REM Author BY http://www.howtogeek.com/forum/topic/clean-logs ,Edit BY @chenshaoju
@echo off
FOR /F "tokens=1,2*" %%V IN ('bcdedit') DO SET adminTest=%%V
IF (%adminTest%)==(Access) goto noAdmin
for /F "tokens=*" %%G in ('wevtutil.exe el') DO (call :do_clear "%%G")
echo.
echo Event Logs have been cleared!
goto theEnd
:do_clear
echo clearing %1
wevtutil.exe cl %1
goto :eof
:noAdmin
echo You must run this script as an Administrator!
echo
:theEnd
pause>NUL