Windows Recovery

incidently, you should have received some restore disks with your computer.
did you buy it new or second hand? if you bought it brand new and had
windows preinstalled, then go to the store and demand for your cd's. if you
download belarc advisor it will analyze your system and give you the product
key to your windows. also, there should be halographic stickers from windows
on you machine somewhere too.

if you boot from the cd's you recently made you should launch the process to
restore your drive.

but if you cannot then you might have to purchase windows xp to install on
your system. if you buy a windows cd, then you can repair the version you
already have, if its worth repairing. but if there is nothing valuable on
the harddrive, then a new install and reformatting of the harddrive is the
best way to go.