first off, i asked OT and basically all i got was rude answers, so i hope C&G will help. ok. i need to reinstall xp. i wanna start off with absoultely nothing on my computer. there are viruses and spyware on my computer that i cannot get off. and i dont have anything else on my computer(200GB) that i need. so i wanna basically format it and start fresh. here's the thing. the only copy of xp i have is one that came with a Dell that my family has. i built my pc and i wanna have xp on it. i understand that i would have to register it. can i call them up and tell them i had to reinstall xp and have them give me a registration number? will that work? i've already installed it on here(after i had 98SE) and its running damn slow(i think so at least) for a 3Ghz P4. ok so what im trying to ask, is how can i know for a fact that everything has been deleted off the HDD and only Xp is on there after i reinstall. do i just pop in the xp disk and install? sorry im not so good with computers, i hope you guys can help. thanks guys.