Now, movements behind the Windows 11 development scene indicate that pictures could soon be exchanged for videos. Microsoft has finally added the option to use video files as desktop backgrounds in the latest Windows 11 Insider build, and it works seamlessly, as spotted by @phantomofearth on X. Windows DreamScene is back! Hidden in the latest Windows 11 Dev/Beta build (26x20.6690) is built in support for setting video files like .mp4 as your desktop background: pic.twitter.com/B4vdtfvqScSeptember 20, 2025As the tweet says, some of you may remember Windows DreamScene from back in the day. It's available as part of the Windows 11 26x20.6690 Dev/Beta builds, for which you have to join the Windows Insider program.