If you do not activate and register your Windows 7 Starter Edition in time you will find that your desktop background wallpaper turns to a black screen. This is done to to indicate the the copy of Windows 7 Starter Edition is not genuine.
Restore Windows 7 Starter edition desktop wallpaper
This tip will tell you how you can restore the background of your desktop to its original wallpaper.
To do so, open Control Panel > Display. In the left side navigation panel, click on Change color scheme.
Now in the Windows color and appearance box which opens up, from the drop-down menu under Color scheme, select Windows Classic. Click Apply. Next in the color scheme drop-down list, select Windows 7 Basic and click OK.
This will restore your Windows 7 Starter Edition wallpaper. You should now try and register your copy of Windows to make it genuine.
This tip will help you, if you are facing this problem in your Windows 7 Starter, Windows 7 Starter E or Windows 7 Starter N editions.
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