Here are instructions on turning off the Desktop Cleanup Wizard, turning it on again will be obvious after you read the steps below.

Tired of getting the message stating "There are unused icons on your desktop".

1. Open the Control Panel.
2. Select and press enter on Display.
3. Control tab to the Desktop tab.
4. Tab to and Spacebar on the Customize Desktop... button.
5. Press alt plus U or tab to the checkbox that says "Run Desktop Cleanup Wizard every 60 days".
6. Press spacebar to toggle its state to either on or off.
7. Tab to ok and press enter.
8. Tab to ok again and press enter.