Well, I have tried to make user accounts "basic" while I'm on the hidden administration account so basically my windows anytime upgrade disc won't work. I've also tried deleting registry keys, unlocking hidden administration account, and making new account from control panel but it seems like I cannot get into the control panel as when i click on manage other accounts it does nothing. I tried to format by pressing alt + f11 on start up (i have ac er) but all it says is I get some error called "error 4" but then it says the program will shut down this has been happening multiple times.