Some MOV files cannot be played in Windows 8.1 Content provided by Microsoft Applies to: Windows 8.1 EnterpriseWindows 8.1 ProWindows 8.1 Select Product Version All Products Resolution To obtain this update, install the November 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2. Status Microsoft has confirmed that this is an update for the Microsoft products that are listed in the "Applies to" section. More Information For more information about software update terminology, see the Description of the standard terminology that is used to describe Microsoft software updates. Last Updated: Nov 18, 2014 Did this solve your problem? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.