Stop error 0x9E and failover cluster can't come online in Windows Server 2012

Applies to: Windows Server 2012 DatacenterWindows Server 2012 DatacenterWindows Server 2012 Standard


This issue occurs when the following conditions are true:
  • You have a Network File System (NFS) file server which is hosted on a two-node Windows Server 2012-based clustered storage server.
  • You have the Data Deduplication feature enabled.
  • The NFS service takes a long time for failover, and then the Resource Hosting Subsystem (RHS) times out.
Also, assume that you have NFS clients that are running Windows or UNIX access the NFS file server. In this situation, when you have many clients (local or remote applications, such as Server Message Block (SMB) or FTP) access this share, sharing violations occur on the server-side intermittently. It causes a brief outage of certain operations, such as directory listing, which can cause third-party applications to fail.


This issue occurs because many reparse points are generated by the Data Deduplication service.

How to get this update

Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as a Recommendedupdate on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:

Operating systemUpdate
All supported x64-based versions of Windows Server 2012 Download Download the package now.
For more information about how to download Microsoft support files, select the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
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Update detail information


There's no prerequisite to apply this update.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

You have to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.


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.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.