Microsoft has released a new video ad to promote Windows 8.1. This new ad mainly focuses on the different kind of PC form factors running Windows 8.1 that is available on market.It shows devices like Surface which has detachable keyboards, 2-in-1s, Ultrabooks, hybrids, 8-inch tablets, etc,. It also shows Windows 8.1 platform features such as Live Tiles, Snap view modes, support for 3D printing, etc,. Watch the ad above.  

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