You Can Fix It

This will show you how to specify a BMP or JPG image of your choice as thedesktop background wallpaper in Windows 7 to be displayed on all users’desktops on the computer. You will also be able to specify that the wallpaper image position to have the center, fill, fit, tile, or stretch style on the desktop. The options to change the desktop background in personalization will not be grayed out, but they will not change anything after you have specified a desktop background in this tutorial.

This will also disable the Set as desktop background (image on computer) or Set as Background (image on website) option when a user right clicks on a image. It will not be grayed out, but it will not work.

Open the Local Group Policy Editor.

In the left pane, click on to expand User Configuration, Administrative Templates,Desktop, and Desktop

To Not Specify a Desktop Background The default setting is to allow users to change their own desktop backgrounds

Select Disabled or Not Configured, and click on OK.

To Specify a Desktop Background and Prevent Change

Select Enabled

In the Wallpaper Name: box, type in the full path of a BMP or JPG image that you want displayed as a wallpaper for all users. For blank wallpaper enter an invalid path

In the Wallpaper Style: drop down menu box, select if you want the wallpaper to be the Center, Fill, Fit, Stretch, or Tile style on the desktop

Click on OK
Close the Local Group Policy Editor window.
Restart the computer

This will show you how to change your desktop background to a wallpaper picture (image), solid color, or slideshow of you choice in Windows 7.The Default Windows 7 Desktop Background is kind of boring and there is some special art work included with Windows 7.

Right click on a empty space on the desktop and click on Personalize.
Click on the Desktop Background link at the bottom of the window.
The name in gray under Desktop Background is the current desktop background file name.

Select a Picture Location by Clicking on the drop down arrow menu to select from the list of available picture folder locations, or click on the Browse button to navigate to the picture folder location.

Select a Desktop Background by Right clicking on an available picture, or click on the box in the upper left corner of the picture, to select it.

Select the Picture Position by Clicking on the drop down arrow menu, and click on the picture position you want for the desktop background.
Close the Personalize window when done.