Jeff upgraded Windows 10 but his password doesn't work when his computer goes to sleep. He wakes it up and it won't unlock. But he can put in a random password and it works! Shut down doesn't work. Leo says that Caps Lock, Num Lock or Scroll Lock can be accidentally hit and it'll lock him out because he's not actually typing it correctly. Restarting will reset the state of the locked buttons. Leo says just to start over and re-upgrade. But since it's a new computer, it may be wise to just return it and get a different one. Something is flakey. He should restore his OS and backup his data.