With no logon wallpaper set, Windows displays a pre-defined color for the logon desktop. ( If you have enabled Welcome Screen, press CTRL+ALT+DEL twice to see the logon screen background color. ) To change the logon background color to that of your choice, you need to alter the registry:
Click Start, Run and type REGEDIT and press Enter
Navigate to the following key:
Backup the registry key by exporting to a REG file
In the right pane, double-click Background
In the Edit String dialog box, type the Color code in R G B format and then click OK.
Example: Type 0 0 0 if you want to see a Black background. You can choose any combination from 0-255
Points to ponder
Quit the Registry Editor and log off
This tiny utility provides you the option to choose a color from the Color Picker dialog and can reset the logon Wallpaper if you want. Choose your preferred Color and click Apply Background color. Remove Logon Screen wallpaper option clears the logon wallpaper.
Download SetBackColor.zip (~6KB Zip)