Turning off the “Desktop Cleanup” program
First go to Start and click on control panel, then Display:
Click on the Desktop tab at the top of the dialog box.
Near the bottom you will find the “Customize Desktop” button. Push this button.
At the bottom of this dialog box you will find a checkbox that runs cleanup every so often.
Just click on it again to deselect this option. Your can reselect it later or manually run it by clicking on the clean desktop now button.