I have one of your pics as my desktop background, cannot change it, how do I get this one off?
You didn’t provide a lot of information, but if you want to change your wallpaper, you do so under Control Panel and Display settings. An easy way in newer Windows versions, from Vista on, would be to right click on a blank spot on your desktop and click on Personalize in the menu that pops up.
This shows you all the themes and backgrounds available. You can always choose one of the default themes. If you want to change your current wallpaper to another picture you have saved, simply click on Desktop background at the bottom, and you can then browse to another picture you have saved on your computer.