batch.cmd / powershell.ps1

@echo off
FOR /F "tokens=*" %%G IN ('wevtutil.exe el') DO (wevtutil.exe cl "%%G")
exit /b

Ručno

FOR /F "tokens=*" %G IN ('wevtutil.exe el') DO (wevtutil.exe cl "%G")

eventlog event log clear clean obriši očisti delete remove xeventlog xevent xlog xclear xclean xobriši xočisti xdelete xremove all sve xall xsve