I have installed windows 7 and i want to switch back to windows XP.But I am not able to install it.All the time it gives a blue screen and says the harddrive might be curropted or there might be virus.This is being happening after the installation of windows 7.
I formatted the drive once even then the same problem.
Did you tried any other version? If not, try to install any other version because that was problem with windows software otherwise some files corrupted. So change the windows installation CD and try...