Reformatting W/out CD Ok, my computer is so full of crap that I've backed up all the files that will be difficult to replace, and I want to reformat it. However, the computer came preinstalled with Windows XP and as far as I know didn't come with a Windows CD itself. 1. How do I go about reformatting it? 2. If I reformat, what will happen to my Windows? Will I have to go buy Windows XP? Edit: I see there's another thread about formatting, but I think mine is different enough that this shouldn't be a problem.