how to make a batch file to empty folders on startup?

Question

i want to make a batch file and put it in the startup folder so that it will empty out folders that i want.
i know i have to open notepad and then rename it to *.bat but i want to know the commands.

eg. to empty out
c:\windows\prefetch
c:\windows\temp

and some more i have.

thanks.

Answer 1

del c:\windows\prefetch /q/f
del c:\windows\temp /q/f

The /q means it won't ask for confirmation.
The /f will force deletion of read-only files.