Normally Windows support only still images as desktop background, but support animated images as screensavers.
Can you think about animated desktop background like mobile animated live wallpapers?
But it is possible to set animated images, videos as Windows desktop background. But not through a direct way, so most are not aware of this tip…
This is not a trick; DreamScene is a software which enables to set wmv, mpeg, or mpg videos as desktop background. After installing this software, you can select and apply as desktop background like assigning images as desktop background, which works in Windows Vista, 7, 8, 8.1 and Windows 10.