We have a dell xps that my family uses with windows xp pro sp2(came pre-installed). Im getting a new hard drive (old one went bad) and cant re-borrow the old xp disc from a friend. Will the OS reinstallation disc that came with the dell work on the rig that i built? The mobo is biostar, but i dont think thats relevant. I just dont want to buy a new os if i dont have to.