Warning! Fatal Error: All media systems on your computer have been crashed!

I have the same problem with the Warning Fatal Error!!! Wallpaper. I have Trend Micro Antivirus and didn’t find any infections. I really don’t know how this wallpaper got into my computer and it was not detected by my antivirus. I research how to get rid of that problem. I find a lot of spyware but you have to pay in order to delete the files on your computer. So I find this page and downloaded the Spyware Doctor and I was really tired with this problem because now my screen looks like and old computer screen. The colors and images look like you have like dialup internet with poor signal which make them look bad. I have speed internet with usually all my color and images were great. So I register and pay for the Spyware Doctor to delete this problem and scan my computer. It did find 9 threats and a lot of infections so I delete them. But at the end nothing happened. I still have the same wallpaper fatal error. Please help me!!!! I am tired of this problem.