I do not know where to turn to, as I don't think there is a WindowsRumors site, so I am hoping my fellow Mac users can help me with a Windows issue. I am trying to do a clean install of Windows on a friend's HP laptop, as it is performing poorly. However, she only has the Windows XP Pro upgrade disk. The original Windows XP Home disk that came with the HP has been misplaced. Will it be possible to do a clean install with just the upgrade disk? We still have the license for the original disk, just not the actual physical disk. Please only answer if you are sure, as I do not want to mess up my friend's laptop anymore than it is. Also, I do not want to resort to BitTorrent or anything like that. Thank you in advance.