September 2014 Update for Windows 8.1 and Windows Server 2012 R2

Si applica a: Windows 8.1 EnterpriseWindows 8.1 ProWindows 8.1


This update fixes the following issues:
  • Issue 1

    After you move a hard disk drive from one slot in an enclosure to a different slot in Windows 8.1 and a full discovery is performed, the queried enclosure information remains incorrect.

    This issue occurs because enclosures are refreshed after the primordial pool is refreshed.

  • Issue 2

    Consider the following scenario:
    • You have a virtual machine that is running Windows 8.1 or Windows Server 2012 R2.
    • Virtual Machine Manager (VMM) is installed on the virtual machine.
    • You monitor server performance through Task Manager or System Center Virtual Machine Manager.

    In this scenario, you may find that the memory usage of the server keeps growing every day and that there is a memory leak in the SMPhost.exe file.

    This issue occurs because of a leak of the MI_Instance structure per each indication class when you are connected to a remote subsystem from the management computer.

More Information

Hotfix information

A supported hotfix is available from Microsoft Support. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this update in Windows 8.1 or Windows Server 2012 R2, you must have update 2919355 installed.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Learn about the terminology that Microsoft uses to describe software updates.