"/>

: If you recently changed your background and want the old one back, you might find it in your CachedFiles folder under your user AppData.

: The rolling green hills of the Windows XP Bliss wallpaper , famously captured by photographer Charles O'Rear , remains the most-viewed photograph in history.

: On older installs, navigate to C:\Windows\Web\Wallpaper to see the defaults.

If you're trying to track down a specific image from your past PC, you can often find it hidden in your system folders: