Black Screen and can only see mouse

[diderot]

When I boot up my computer going into the starting page since there is a guest acccount aand a admin I can only see my mouse and a blackground I don't understand computers that much but I need help!!!!

 

[writhziden]

First, go through the steps for http://www.sevenforums.com/tutorials/219533-troubleshooting-windows-7-failure-boot.html. Let us know if you need help as you proceed through those steps.