On any Windows computer new enough to see this page in more thna 8 colors, bring up a dos session and type in "format c: /s". The put in the new OS disk that you want ot install. This will erase everything you got on there. If you jsut want to delete certain things or types of things, or files in certain locations, lol, forget it. Some shit on windows is un-un-installable too.

On any mac that dosen't have a keyboard built-in, insert the OS CD and select "Clean Install". This erases everything and resintalles the new OS. To delete or replace or rebuild certain files, or types of files, just click "selective install" or "custom install" depending on what OS you have.

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