Personalized Log on Wallpaper Without any Software!

Here are the steps to Personalize your Log on Wallpaper

1. Open Regedit

            A quick way to access Regedit that applies to Windows XP, Vista, and 7 is the following:

•  Click on Start 
•  Click on Run.
•  Type regedit in the dialog box.
•  Click OK

     2.   Now, to change the LOG ON WALLPAPER follow the given steps...

•  Navigate to HKEY_USERS\.DEFAULT\Control Panel\Desktop.
•  In the right hand pane, double click on Wallpaper.
•  In the Value Data option, enter the full path to your bmp file you want to be your wallpaper. Example: For a file named image.bmp placed in Windows folder, type C:\WINDOWS\image.bmp
• To tile the image set "TileWallPaper" to 1. 
•  To Stretch the wallpaper set "WallPaperStyle" to 2 .

       3.  Close the Registry Editor and Restart the PC to apply the changes.

Once the changes are applied, each time you start your PC , you will see the log on wallpaper.
To undo the trick, simply delete the address to your image mentioned in Value Data option.