Assume that you use Group Policy Management Console (GPMC) to show the Group Policy Results report for a remote computer in Windows Server 2012 R2. Additionally, the remote computer is running Windows 7 or earlier version of Windows. In this situation, you see the previously "Inaccessible, Empty or Disabled" message under the Summary tab.
To resolve this issue, install update rollup 2975719. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2975719 August 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
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