Q: My desktop has a black background. Whenever i go to Desktop Properties, it won’t let me change any of my backgrounds. I’m able to select the images, but the background never changed. I rather just have it back to the Vista background.
To restore the ability to change the desktop Wallpaper in your system, download the file wallpaper_enable.reg for Windows 2000/XP/Vista systems, and save the file to your Desktop. Right-click wallpaper_enable.reg and choose Merge to apply the settings.
The REG file removes the Wallpaper Policy setting from the following registry locations
Windows Vista specific setting
Click Start, Control Panel, Ease of Access, Ease of Access Center.
Under Make things on the screen easier to see, deselect the option:
You should be able to change the desktop background now.