To set one of these images as your background, click on the link for your desired image and resolution. Once it has loaded, right-click on the image. From the menu, select the option 'Set as Background' or 'Set as Wallpaper.'

If the above options are not available, choose to save the image. Minimize all programs so you can see the desktop. Right click anywhere on the desktop. This will open a list of options. Select the 'Properties' option. Then choose 'Background' tab. Select the image you just downloaded from the list of images available as wallpaper. Clicking on the image should show a small preview picture of the wallpaper in the simulated computer screen. Click OK and you can see the wallpaper on the desktop.