When multiple applications that use the UI Automation framework are running at the same time on a Windows 8-based computer, a memory leak occurs, and you experience high CPU usage.
This issue occurs because the named shared memory mapping cannot be freed.
To resolve this issue, install update rollup 2883201. For more information about how to obtain this update rollup package, click the following article number to view the article in the Microsoft Knowledge Base:
2883201 Windows RT, Windows 8, and Windows Server 2012 update rollup: October 2013
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates