The best way to delete/remove -everything- including files and subdirectories is to use:
RD "" /S
And to eliminate the "Are you sure" prompt:
RD "" /S /Q
You will see a msg "The system cannot find the path specified." when it is done but it is nothing to worry about. Just be sure to be IN the starting directory you want to begin deleting everything from. If you start in the root, you _will_ delete all files and directories on your drive.
This little trick gets files no matter what their properties are too - hidden, system and read-only. JSV