So to start my girlfriends computer had a virus and spam that mcaffee could not fix. And since i use avast on my computer and love it i figured i would load it onto hers. so i tried to delete mcafee but it didnt work. so i installed anyway after installation i scheduled a scan of her computer and had any corrupted files deleted. After that it booted up to the login screen. she doesn't have a password or anything so i just clicked on it. it would say loading personal settings then switch to logging user off. i tried starting in safe mode with networking and still could not log on any ideas??? o and its windows xp