KDS doesn't start or KDS root key isn't created in Windows Server 2012 R2

This article describes some issues that occur when you use the group Managed Service Accounts (gMSAs) feature on Windows Server 2012 R2-based domain controllers. You can fix these issues by using the update in this article. Before you install this update, see the Prerequisites section.
If the domain controller account isn't located in the root of the Domain Controllers organizational unit (OU), you may encounter one of the following issues and receive the corresponding error messages:
  • Microsoft Key Distribution Service (KDS) start failure:

    System error 1064 has occurred. An Exception occurred in the service when handling the control request.
  • KDS root key generation failure:

    The process cannot access the file because it is being used by another process. ( Exception from HRESULT: 0x80070020 )
This issue occurs because KDS assumes that the domain controllers are in the Domain Controllers OU instead of a child OU of the Domain Controllers.
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 Recommended update 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 update is available for download from the Microsoft Download Center:

DownloadDownload the Windows Server 2012 R2 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 get Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Update detail information


To apply this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows Server 2012 R2.

Registry information

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

Restart requirement

You may 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.
See 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.

Windows Server 2012 R2

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.3.960 0.18 xxxWindows Server 2012 R2RTMGDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes aren't listed, are signed with a Microsoft digital signature.
x64 Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform

Additional file information

x64 Windows Server 2012 R2
File propertyValue
File nameAmd64_bcd58f5a9114accbfd8871471f79bd21_31bf3856ad364e35_6.3.9600.18053_none_739bd7e5101ad639.manifest
File versionNot applicable
File size702
Date (UTC)11-Sep-2015
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_microsoft-windows-kdscli-dll_31bf3856ad364e35_6.3.9600.18053_none_2fb7a8310504274c.manifest
File versionNot applicable
File size2,614
Date (UTC)11-Sep-2015
Time (UTC)15:44
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,581
Date (UTC)11-Sep-2015
Time (UTC)21:52
PlatformNot applicable

Article ID: 3094486 - Last Review: 12/22/2015 06:05:00 - Revision: 4.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation

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