I just system restore my computer because it had some trouble loading and a bit of an error but after it was done this image kept popping up. Now i can't even install any new software of anykind or none of the software that was installed on there can't load up now. when i try to get onto the internet that pop up keeps showing up. It keeps repeating can't find desktop folder and when i try to go to that folder it blocks me off from going into it

http://img301.imageshack.us/img301/748/desktopdenied7en.png