I need to re-install my windows installation. Long story but I'm pretty sure the initial installion installed with many errors, resulting in memory problems and windows update problems. Problem is my copy of 7 is an upgrade copy. I did a "hard" upgrade from XP 64-bit to Windows 7. Basically it wouldn't directly upgrade instead it just whiped the hard drive anyway and left all the XP files in a folder called "windows.old". However I first tried to clean install the copy and it wouldn't accept the product key. Now I wanna re-install Windows 7, especially since i know more now about what I'm doing and how to install it with no issues, but am I going to have to go through the process of putting XP 64-bit on again to do it or is there a way I can just flat out re-install it without even bothering? Seems like a waste of time since its just going to whipe it away anyway!