Hi, I bought a copy of windows from the net, I have installed it and all my programs, everything fine, went to activate, wouldn't work, got my technically minded friend round. He says that my os is a copy, GRRRR!! words can not expressed how lets say "extremely unsatisfied" or "******** *****" I feel but anyway he told me a reliable site to get another copy that he buys from on a regular basis, (oh i'm using xp pro btw, don't like vista, 7 I using on my own pc, this is for my family and they only use for office and internet. Anyway to the point, is there a way i can install the new one over the old one without losing all my hard work installing and configuring stuff? (without cloning) i hate it and refuse to try it again. If there isn't please tell me how I can wipe the hard drive entirely of everything including xp and start from scratch with new xp disk (i will save all my docs etc to a backup external hd and reinstall updates and programs after.) Thanks ever so much, bob.