When at login screen hit control alt delete. Then for username administrator with no passwordHow do i restore my CPU from the sign in screen?When you restart you computer there should be an option to do a System Restore once the computer starts up. It should be F1 but I am not sure, just watch for something resembling system restore. From there you can try to restore the computer to a previous setting meaning it should reverse what you did.
Note: If you do this anything you had done from the date you restore to could be lost. Use at your own discretion.How do i restore my CPU from the sign in screen?you could try booting into last known good configuration.
failing that, grab a copy of hirens boot cd and crack your way in.
