DreamScene is (spiritually) back in Windows 11, letting you use videos as your desktop background — Latest Insider build finally returns coveted feature

Microsoft has reintroduced the ability to use video files as desktop backgrounds in the latest Windows 11 Insider build, reminiscent of the old DreamScene feature. Users can now set video files like .mp4 as their wallpaper, a feature that was previously available until Windows Vista. This functionality is currently part of the Windows 11 Dev/Beta builds, accessible through the Windows Insider program. While the feature is experimental and limited to the desktop, it offers a nostalgic touch for users who remember dynamic desktop backgrounds as a native feature of the OS.