How to deactivate the wallpaper in Windows 7
Windows 7 offers a unique background feature that was not offered natively in Windows XP: the background slide show. This slide show allows you to use your personal photos for the background, and they are automatically changed after a certain period of time. If you do not like the slide show, you can set the desktop background with a solid color or an image background. And if you do not want a desktop background, you can simply turn it off.
one
Click on the "Start" button and select "Control Panel."
two
Click on "Ease of Access" in the Control Panel.
3
Click on "Accessibility Center" in the panel on the right.
4
Click on "Make the computer look easier" in the "Explore all options" list.
5
Check "Delete background images (if available)" in the "Making things on the screen easier to see" section.
6
Click "OK" to make your background disappear.