I am contemplating a fresh install of XP. I do not currently have the disk that came with my PC, so will need to buy. I do currently have a valid, working (for the most part) copy of XP Home edition on PC. WhicH copy do I need to buy? Windows XP Home Edition SP2 - $224.95 or Windows XP Professional Upgrade SP2 - $89.95 Sorry if this is a moronic question. I'm hoping the cheaper purchase would work. Please keep in mind that the whole purpose of my doing this is to start with a fresh clean copy of XP. So if the upgrade will work but not give me a clean install, it would be worthless to me. Thanks much.