1.Click on "Start", then "Run.." and type "regedit".
2.Navigate to the registry key:
"HKEY_CURRENT_USER\Control Panel\Desktop".
3.Once there, locate the DWORD value "PaintDesktopVersion".
4.Right click on it and select Modify.
-Value equal to "0" removes Windows version from desktop.
-Value equal to "1" adds Windows version to desktop.
5.Reboot your computer.


Try that.

If it doesn't work, let me know.