Microsoft is also thought to be testing video backgrounds, but that's still missing from the latest preview build.

Stop fighting with your PC just to set a wallpaper; Windows 11 is finally embracing WebP files natively.

You can now open Settings > Personalization > Desktop Background, and choose any .webp image as the background.

Microsoft's first new preview build of Windows 11 for 2026 is packing a handful of Copilot additions, along with a new mobile ...