BLack Background windows 7

My desktop background is black, i reboot new windows 2 3 times but it didn't work... tried nvidia, ease ov access and many ways i ind on net but still it is not irking, please help me out with problem

What exactly is the problem?

Are you able to start Windows?

What are your computer specifications, in particular your graphics card?

http://www.sevenforums.com/tutorials/180324-system-info-see-your-system-specs.html

http://www.sevenforums.com/tutorials/9733-screenshots-files-upload-post-seven-forums.html