This small program allows you to change the background image of Windows 7 logon/logoff screen. By default, Windows 7 doesn't offer a menu where you can change the background of this screen, but this small tool allows you to do it.
The program is portable. Just run the executable file, then you are able to select a folder with pictures from local hard drive. Then you can choose the desired image from a list with thumbnails.
It displays a preview once you click on an image and if you want to set it as background, you must to click Apply. In a few seconds the new background will be set. To logoff and view the screen, press Windows + L keys.
As options, you can prevent other users to change the background and choose between different types of shadows (light, dark, no shadow).
Windows 7 Logon Background Changer is available as free download for Windows 32-bit and 64-bit.