Microsoft is reintroducing live wallpapers to the Windows operating system, originally known as DreamScene from the Windows Vista era. The feature is currently in testing, with the latest Windows 11 Dev/Beta build (26x20.6690) revealing an option to use video files as live wallpapers. Users can participate in the Windows Insider program to access this feature by enabling feature ID 57645315 and restarting the explorer.exe process. The official rollout timeline is uncertain, but it may debut in next year's major updates. The current focus for updates is on security enhancements rather than significant visual changes. More bug fixes and refinements are expected before the feature's stable release.