So yesterday, I did a windows chkdsk and cancelled it manually half way through. This morning I tried to log on and got constant blue screens with lists of errors, none of the boot modes will work (safe mode, last known config etc). I have a windows XP home edition disk and I'm currently looking for a way around the error with the repair tool. The only other change I can think of is installing the SP3 update, but it ran fine after this. Does anyone have any ideas of how to fix it, preferably without formatting, as I will need to backup various files. It may seem a silly question, but I would appreciate help as soon as possible. Thanks!