Hyper-V virtual machine backup leaves the VM in a locked state

Symptoms
Consider the following scenario:
  • You're running Microsoft System Center Data Protection Manager (DPM).
  • You start a backup job in DPM to back up Hyper-V virtual machines (VMs).

In this scenario, DPM sometimes leaves the VM stuck in the backup state (locked).
Resolution

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.

Prerequisites

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

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.

File information

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

Windows 8.1 or Windows Server 2012 R2 file information and notes

Important Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • 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 0.16 xxxWindows 8.1 and Windows Server 2012 R2RTMGDR
    6.3.960 0.17 xxxWindows 8.1 and Windows 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 for Windows 8.1 and Windows Server 2012 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Eventcls.dll6.3.9600.1638415,87222-Aug-201303:49x86
Vssapi.dll6.3.9600.171201,117,69610-May-201403:21x86
Vsstrace.dll6.3.9600.1712053,24810-May-201403:45x86
For all supported x64-based versions of Windows 8.1 or Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Eventcls.dll6.3.9600.1638416,38422-Aug-201311:15x64
Vssapi.dll6.3.9600.171201,556,99210-May-201403:38x64
Vsstrace.dll6.3.9600.1712072,70410-May-201404:17x64
Eventcls.dll6.3.9600.1638415,87222-Aug-201303:49x86
Vssapi.dll6.3.9600.171201,117,69610-May-201403:21x86
Vsstrace.dll6.3.9600.1712053,24810-May-201403:45x86

Additional file information

Additional file information for Windows 8.1 or Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,807
Date (UTC)10-May-2014
Time (UTC)16:41
PlatformNot applicable
File nameX86_826fc0332232c6deab8fbc5a3b1aa968_31bf3856ad364e35_6.3.9600.17120_none_4595c2fb7b02ebf3.manifest
File versionNot applicable
File size694
Date (UTC)10-May-2014
Time (UTC)16:41
PlatformNot applicable
File nameX86_microsoft-windows-vssapi_31bf3856ad364e35_6.3.9600.17120_none_69c366a39d2e52dd.manifest
File versionNot applicable
File size11,914
Date (UTC)10-May-2014
Time (UTC)16:41
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 8.1 or Windows Server 2012 R2
File propertyValue
File nameAmd64_0cf5d20463332a4f3bd7009c0717c644_31bf3856ad364e35_6.3.9600.17120_none_3c8eb4de16b95dea.manifest
File versionNot applicable
File size698
Date (UTC)10-May-2014
Time (UTC)16:51
PlatformNot applicable
File nameAmd64_139b13601fca2d3f083b6d48cb666a15_31bf3856ad364e35_6.3.9600.17120_none_c1a9e4cfd256ff86.manifest
File versionNot applicable
File size698
Date (UTC)10-May-2014
Time (UTC)16:51
PlatformNot applicable
File nameAmd64_microsoft-windows-vssapi_31bf3856ad364e35_6.3.9600.17120_none_c5e20227558bc413.manifest
File versionNot applicable
File size11,918
Date (UTC)10-May-2014
Time (UTC)16:51
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,923
Date (UTC)10-May-2014
Time (UTC)16:51
PlatformNot applicable
File nameWow64_microsoft-windows-vssapi_31bf3856ad364e35_6.3.9600.17120_none_d036ac7989ec860e.manifest
File versionNot applicable
File size10,915
Date (UTC)10-May-2014
Time (UTC)16:51
PlatformNot applicable
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.
Properties

Article ID: 2964439 - Last Review: 10/08/2014 09:47:00 - Revision: 2.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1

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