When you open Windows 7 Logon Background Changer first time, it will list all Windows Wallpapers at top, you can select any of these Wallpapers to use them as Windows 7Logon Screen. If you want to use any other wallpaper/s as Windows 7 Logon Screen, put the wallpaper/s in a folder, then open “Windows 7 Logon Background Changer” and click on “Choose a folder” and select the folder where wallpapers files are located and Click “OK”. The program will show all the images found in folder at top. Select the image that you want to use as Logon Screen and Click “Apply”.That’s all.
Windows 7 Logon Background Changer do not change any system file. It creates a few JPEG files based on the image you want to put as wallpaper for the Windows 7 login screen, applies the appropriate cropping and sizing and saves them using the best compression quality possible.