File:Windows 11 wallpaper dark default 800x500.jpg

Summary
One of the wallpapers included with Windows 11 Pro, build 21996.1. For a full-size version from a more recent build, see File:Windows 11 wallpaper dark1.jpg.

Source

 * Windows 11’s default wallpapers are Microsoft’s best yet by Tom Warren, The Verge. 2021-06-16.