hi , i'm quite new into this so please try n give a step by step guide . i used to run on windows xp (sp 1) and recently installed vista. For the past 3 months , by computer have been running on dual mode . Now i don't want vista anymore and my windows xp is not working properly. i only have a windows xp installation disc. i dont mind if some data got lost either. i really want to uninstall both vista and xp and then install xp again. plz help as soon as possible n if u want any additional info , plz ask.