I have my main account that is password protected, and i have turned on the guest account. My brother was using my laptop to play world of warcraft on the guest account, when he was done he just closed the lid. When I got home i opened it and the screen was just black so i held the button to turn it off. I turned it back on and the guest account is nowhere to be found. So i log in and go to the user settings and turn on the guest account but every time i leave the user settings and go back to the main window nothing happens and it changes back to off.