hey everyone, i recently lent my hard drive to a friend so he could format his mother board ( im not quite sure what he used it for but it was something like that ) and when i got it back to put in my pc it comes up with the safe mode thing and start windows normally. and i chose to start from last known good config but it just loads that grey bar and then freezes and does nothing. i took it down to my friends house and it works perfrectly fine there. can anyone help please???