|Press the Alt/Ctrl/Del keys at the same time to bring up the Task Manager, click File>New Task (Run) then type in explorer.exe and click OK.|
If that doesn't
correct the problem go to the link below and scroll down to line 195 (right column) and download the "Restore Desktop Icons and Taskbar" vbs file fix.
To use the VBS Files: Download .vbs file and save it to your hard drive (you may want to right click and use Save Target As). Double
click the vbs file. You will be prompted when the script is done.