I think i am missing something
OK, I dont know anything about macs, I purchased one online and it work great , last week it showed it needed a upgrade, so i clicked on it, after a while i couldnt do anything on there and the upgrade was not moving so i figured the laptop froze so i shut it off, when i turn it on it seems it wants to turn on but after it tries to load all of the programs it goes to a black screen, and asks me for login and pasword , i cant remember my login, i contacted the guy that i purchased from and he wasnt much help, it also says that it was unable to finish the audit... I have no clue what i did please help !!!