How to hide adult wallpaper?

You all probably know that Internet Explorer have an ”Set as wallpaper” option for images. So here’s a little story about it... An woman by accident set an explicit image as wallpeper. The problem was that she didn’t know how to remove desctop wallpaper.., and she can’t leave it ’cos it happened in office. So you want to know how she solve this? Look at the picture below!