You may release sometimes that there are several icons spreading across the screen on your computer, and due to these icons your desktop looks messy and you may not be able to see the current wallpaper due to these icons.
Here is how you can hide these icons and desktop gadgets in windows 7
Follow the procedure given below
1. Right click in the empty area of your windows 7 desktop, and go to View >> Show desktop Icons – uncheck it.
Similarly you can also uncheck the option Show desktop gadgets to hide windows 7 sidebar gadgets shown on desktop. I hope you like this simple and easy windows 7 trick, you can read more windows 7 tips here