::For Macs
 
 

1. Click on the correct resolution for your display to link to the full-size image.
   
   
2. Hold down the "Control" key while clicking on the image. Choose "Save Image as..." and save the image to your desktop.
   
   
3. Open "System Prefrences" from the Apple menu and select "Desktop & Screen Saver Prefrences".
   
   
4. Select "Choose Folder...", locate the desktop and click "Choose".
   
   
5. Your desktop image will appear as a thumbnail. Click on the thumbnail to make it active.
   

 ::For PCs
 
 

1. Click on the resolution for the wallpaper you want.
   
   
2. When the image comes up in the browser window, right-click on the image.
   
   
3. From your browser's pop-up window, select "Set as Wallpaper"