Originally published: May 26, 2010 at: http://technet.microsoft.com/en-us/library/dd430893(WS.10).aspx?lc=1033

Applies To: Windows Server 2008

For Windows Server 2008 R2 update list see: Hyper-V: Update List for Windows Server 2008 R2

The following table shows the list of software updates and hotfixes for Hyper-V in Windows Server 2008. Updates that are available on Windows Update are indicated, as well as the download location for those that are available at the Microsoft Download Center. These updates and hotfixes can help avoid some known issues and may save you a support call.

(This wiki page is part of a pilot program to remove topics such as this one from the TechNet and MSDN libraries and move them to the wiki. Why not leave this on the Library? Customers asked for an RSS feed so that they can get a notification when the list is updated and a new update is released. The RSS feed for this wiki article is http://social.technet.microsoft.com/wiki/contents/articles/hyper-v-update-list-for-windows-server-2008-r2/rss.aspx.) 

Note Some updates are required only under certain circumstances, as noted in the table. The updates for Windows Server 2008 Service Pack 2 (SP2) are applied automatically with the service pack, and do not need to be applied again. Also, you may want to see the list of updates for Hyper-V in Windows Server 2008 R2 (http://go.microsoft.com/fwlink/?LinkId=183395).

A hotfix is intended to correct only the problem that is described in the article. You should not apply the hotfix if you have net seen the symptoms.

In some cases, the version number of the Integration Services (also known as Integration Components) has changed. The IC version number for the RTM version of Windows Server 2008 is 6.0.6001.17101.

The IC version number for Windows Server 2008 RTM is 6.0.6001.17101.

The IC version number for Windows Server 2008 SP2 is 6.0.6002.18005

The IC version number for Windows Server 2008 R2 is 6.1.7600.16385.

The IC version number for Windows Server 2008 R2 SP1 (Beta) is 6.1.7601.16562.

Other IC version numbers related to KBs are listed with the KB in the table below for your reference.

Comprehensive list of Hyper-V updates

Resources

• VSC and VPC Updates
  • 956124 Microsoft Virtual Server 2005 R2 SP1 Update. http://www.microsoft.com/downloads/details.aspx?FamilyID=886876b7-e17c-4429-85da-f623506c5f2c 
  • 941125 The Virtual Server service may stop responding when the service is starting if one or more of the virtual machines are configured to automatically start when the Virtual Server service starts. http://support.microsoft.com/kb/941125

• DPM/VSS Updates here:

  • 960038 You receive a "0x0000007E" Stop error on Windows Server 2008-based computers that host Hyper-V virtual machines when you use the Hyper-V writer to back up virtual machines. http://support.microsoft.com/kb/960038
  • 959962 KB959962 is scheduled to release in January 2009, it enables online protection of Hyper-V guest machines. Until the update is available, virtual machines can be protected by configuring them for offline backup within each machines’ Integration Components service settings. Open the Settings window for the virtual machine and select Integration Services in the left pane. Clear the check box for Backup (volume snapshot) service and click OK. If you have set the DWORD AllowOffline registry key under HKEY_LOCAL_MACHINE\Software\Microsoft\Microsoft Data Protection Manager\Agent make sure the value is not zero (0).. http://technet.microsoft.com/en-us/library/dd347840.aspx

 SCVMM updates here: http://blogs.technet.com/jonjor/archive/2008/12/29/updates-updates-scvmm-hyper-v-cluster.aspx

• 962941 Recommended hotfixes for System Center Virtual Machine Manager 2008 http://support.microsoft.com/kb/962941
• 956589 Description of the Hyper-V update for issues that may occur when you manage the Hyper-V role on the 64-bit editions of Windows Server 2008 by using SCVMM
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;956589
• 956774 A Background Intelligent Transfer Service (BITS) client cannot handle files that have paths that contain the volume GUID in Windows Server 2008 or in Windows Vista
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;956774942372 When you try to create a template from a Windows Server 2003 Service Pack 2-based virtual machine in System Center Virtual Machine Manager 2007, the job fails. http://support.microsoft.com/default.aspx/kb/942372
• 942372 When you try to create a template from a Windows Server 2003 Service Pack 2-based virtual machine in System Center Virtual Machine Manager 2007, the job fails. http://support.microsoft.com/default.aspx/kb/942372
• 954563 Memory corruption may occur with the Windows Management Instrumentation (WMI) service on a computer that is running Windows Server 2008 or Windows Vista Service Pack 1. http://support.microsoft.com/default.aspx?scid=kb;EN-US;954563
• 958124 A wmiprvse.exe process may leak memory when a WMI notification query is used heavily on a Windows Server 2008-based or Windows Vista-based computer.
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;958124
• 955805 Certain applications become very slow on a Windows Server 2008-based or Windows Vista SP1-based computer when a certificate with SIA extension is installed
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;955805
• 956697 Windows Server 2008 Hyper-V VSS writer is not used during a backup job because of corrupted or invalid virtual machine configuration files
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;956697
• 959978 Error message when you back up a Windows Server 2003-based virtual machine on a Windows Server 2008 Hyper-V-based computer: "GetWriterStatus FAILED for Selected writer [Microsoft Hyper-V VSS Writer], writer is in state [9] [VSS_WS_FAILED_AT_FREEZE]"
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;959978
• 958184 Virtual machine backup operations fail in Windows Server 2008 when Hyper-V virtual machine files are saved on a volume that is mounted on a failover cluster by using a volume GUID. http://support.microsoft.com/default.aspx?scid=kb;EN-US;958184
• The System Center Virtual Machine Manager (VMM) 2008 Management Pack for System Center Operations Manager 2007.
  http://www.microsoft.com/downloads/details.aspx?FamilyID=d6d5cddd-4ec8-4e3c-8ab1-102ec99c257
• 961983 Hotfix Rollup package for System Center Virtual Machine Manager 2008: April 14th, 2009
  http://support.microsoft.com/kb/961983/en-us
  • Supersedes 959596 Description of the System Center Virtual Machine Manager 2008 update to address physical to virtual (P2V) issues
    http://support.microsoft.com/kb/959596

• KB982523 - Description of the System Center Virtual Machine Manager 2008 R2 Admin Console hotfix rollup package: June 8, 2010 http://support.microsoft.com/KB/982523
• KB982522 - Description of the System Center Virtual Machine Manager 2008 R2 hotfix rollup package: June 8, 2010 http://support.microsoft.com/KB/982522

Community Content :

Post Windows Server 2008 R2 RTM Hyper-V patches
cedward ... Thomas Lee  

 Stop error message on an Intel Xeon 5500 series processor-based computer that is running Windows Server 2008 R2 and that has the Hyper-V role installed: "0x00000101 - CLOCK_WATCHDOG_TIMEOUT"
http://support.microsoft.com/kb/975530
The network connection of a running Hyper-V virtual machine is lost under heavy outgoing network traffic on a Windows Server 2008 R2-based computer.
http://support.microsoft.com/kb/974909

 Windows Updates, Virtualization KBs and Tools
tonysoper ... Thomas Lee  

 You can also find Windows Server and Client updates, virtualization KBs and useful tools here as well:

• 957311 Recommended hotfixes for Windows Server 2008-based server clusters
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;957311
• 958124 A wmiprvse.exe process may leak memory when a WMI notification query is used heavily on a Windows Server 2008-based or Windows Vista-based computer. http://support.microsoft.com/default.aspx?scid=kb;EN-US;958124
• 954563 Memory corruption may occur with the Windows Management Instrumentation (WMI) service on a computer that is running Windows Server 2008 or Windows Vista Service Pack 1. http://support.microsoft.com/default.aspx?scid=kb;EN-US;954563
• 959766 Windows Server 2008 Hyper-V systems restart unexpectedly, and you receive a 0x1000007E Stop error code when you mount a VHD file. http://support.microsoft.com/kb/959766
• 956697 Windows Server 2008 Hyper-V VSS writer is not used during a backup job because of corrupted or invalid virtual machine configuration files http://technet.microsoft.com/en-us/library/dd430893.aspx
• 958065 You cannot configure a Hyper-V virtual machine by using Windows Server 2008 Failover Clustering when the virtual machine uses a storage device that is managed by a third-party clustered file system or a third-party replication solution.
  http://support.microsoft.com/default.aspx?scid=kb;EN-US;958065
• 959962 An update is available for Windows Server 2008-based computers to address issues with backing up and restoring Hyper-V virtual machines. http://support.microsoft.com/kb/959962
• 961661 Video performance may decrease when a Windows Server 2008-based computer has the Hyper-V role enabled and an accelerated display adapter installed. http://support.microsoft.com/default.aspx/kb/961661
• 961804 Creating or starting a Hyper-V virtual machine on Windows Server 2008 or Microsoft Hyper-V Server 2008 may fail with error: 0x800704C8. http://support.microsoft.com/default.aspx/kb/961804
• 950792 When you try to enable, disable, or update Hyper-V technology, the process stops responding. http://support.microsoft.com/kb/950792
• 958664 Windows Server system software that is not supported in a Hyper-V virtual machine environment. http://support.microsoft.com/kb/958664
• 299631 Failover behavior on clusters of three or more nodes. http://support.microsoft.com/default.aspx/kb/299631
• 833167 A Volume Shadow Copy Service (VSS) update package is available for Windows Server 2003. http://technet.microsoft.com/en-us/library/dd430893.aspx
• 958662 How to back up Hyper-V virtual machines from the parent partition on a Windows Server 2008-based computer by using Windows Server Backup http://support.microsoft.com/default.aspx/kb/958662
• 975921 You may be unable to perform certain disk-related operations after an exception when a hardware provider tries to create a snapshot in Windows Server 2008 R2 or in Windows 7 http://support.microsoft.com/kb/975921

Tools

• Remote Server Administration Tools for Windows 7 and Windows Server 2008 R2: http://www.microsoft.com/downloads/details.aspx?FamilyID=7d2f6ad7-656b-4313-a005-4e344e43997d
• KB890830 Microsoft Windows Malicious Software Removal Tool. http://www.microsoft.com/downloads/details.aspx?FamilyId=AD724AE0-E72D-4F54-9AB3-75B8EB148356
• KB941314 Microsoft Remote Server Administration Tools for Windows Vista. http://www.microsoft.com/downloads/details.aspx?FamilyID=9ff6e897-23ce-4a36-b7fc-d52065de9960

SP2 includes previous patches
tonysoper ... Thomas Lee 

The page that lists all the updates above that are included in SP2 is at: http://technet.microsoft.com/en-us/library/dd335033(WS.10).aspx, or you can DL the excel spreadsheet at: http://go.microsoft.com/fwlink/?LinkId=143706

 KB980081: A computer that is running an x64-based version of Windows Server 2008 crashes
Pronichkin 

New Hotfix for Windows Server 2008 Service Pack 2: KB980081: A computer that is running an x64-based version of Windows Server 2008 crashes (http://support.microsoft.com/kb/980081)