Why would want to deliberately crash a computer?

I need to.. The Dell is on its last leg. You can't do anything on it.. And plus my iMac computer doesn't support the latest version of iTunes so my iPhone. 4 doesn't have music on it. So I need to crash my Dell and then reinstall windows vista.

Simply back up your data, boot to the recovery disc and go from there.

I see, you actually meant "format" and reinstall. Follow Ben's advice.
I was concerned that you wanted to crash someone else's computer. :)

Do you have the discs or a recovery partition on the laptop?