This video shows you how to change your Windows 7 login background.
*Start the computer
*You will be taken to the Windows 7 login screen
*Click the "Browse" button bottom left to find images on your computer (jpeg format only)
*By clicking on the "More Backgrounds" button, you can choose an image from the Windows website
*If you want to restore the default image, simply click on the "Restore Default" button on the bottom of the screen
*You can change the resolution by clicking on the button in the top right corner of your screen.
*When you have selected the image you want, click "Change Background."
*You will need to restart computer for changes to take effect.
And that's all there is to it!