Cannot access the desktop

I am trying to help a friend with her computer and it has me stumped. Her son had made a stupid pencil sketch and put in on her computer. Now when you boot up what you get is a white screen with the sketch and that is it, no desktop, no icon, nothing. I cannot go any further to get into the computer and get rid of it. Right clicking the desktop does nothing and ctrl-alt-del shows nothing of help to cancel. Are there any keyboard commands that will bring it up or any other suggestions would be appreciated.

Thanks

 

Thanks but I still have the dumb screen. I know windows loaded because when I shut down with Task Manager I see the antivirus icon pop up plus this thing has a screen saver on it that runs, but soon as you touch the mouse the stupid white screen and drawing come up. This is a new one for me

 

You might try using the win-key (second from the left on the bottom row, with a windows symbol on it) as a shift key, holding it down while you tap r once; then type explorer (typing blind if necessary) and hit enter.

 

Thanks, I'll try that but I got to thinking maybe she has it passworded. It wasnt when I built it years ago. I am trying to get in touch with her to see. That may explain it all