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  • When: 27 Jan 2013 1:17 PM
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  • When: 29 Apr 2013 1:26 PM
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Wiki  >  TechNet Articles  >  Hyper-V: Update List for Windows Server 2012

Hyper-V: Update List for Windows Server 2012

Hyper-V: Update List for Windows Server 2012

The latest Hyper-V service packs, updates, and hotfixes for Windows Server 2012 are listed here in chronological order.

Applies To: Windows Server 2012

These updates and hotfixes can help avoid some known issues and may save you a support call.
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.

noteNote: A catch 22, do you install it to try preventing the problem from occurring or do you only install it if you see the problem and have an outage?

noteNote: Some updates are required only under certain circumstances, as noted in the table.

KB Article and Date Published Required? IC Version Applies to: Availability
KB 2770917: Windows 8 and Windows Server 2012 cumulative update: November 2012

(http://support.microsoft.com/kb/2770917)

Published on 11/13/2012		 Yes, if you are using pass through disks with Hyper-V VMs and the backup fails.

Yes, corrects an issue where the hypervisor may crash in limited circumstances.		 6.2.9200.16433 (2008 and later guests)

6.2.9200.16384 (2003 and XP guests)		 Windows 8, Windows Server 2012 Windows Update, WSUS, Catalog, Download Center
KB 2770440: Poor performance when you enable RemoteFX in Hyper-V on a Windows Server 2012-based computer that uses AMD processors

(http://support.microsoft.com/kb/2770440 )

Published on 11/14/2013 		Yes, if you are running Hyper-V and RemoteFX on AMD processors. N/A Windows Server 2012 Hotfix
KB 2785638: You cannot use the Cisco SR-IOV network adapter on a virtual machine in Windows Server 2012

(http://support.microsoft.com/kb/2785638)

Published on 1/9/2013		  Yes, if you use a SR-IOV network adapter with virtual function (VF) capability and you find that the VF is not available on restart of the VM.  N/A Windows Server 2012 Hotfix
KB 2813630: Virtual machine enters a paused state or a CSV volume goes offline when you try to create a backup of the virtual machine on a Windows Server 2012-based failover cluster 

(http://support.microsoft.com/kb/2813630)

Published on 2/17/2013		 Yes, if CSV has goes offline during backups.  N/A Windows Server 2012 Hotfix
KB 2796995: ODX causes corruption during Live Migration 

(http://support.microsoft.com/kb/2796995)

Published on 2/13/2013		 Yes, critical patch if ODX is enabled.  N/A Windows Server 2012 Hotfix
KB 2806542: "0x000000D1" Stop error on a virtual machine in Windows Server 2012

(http://support.microsoft.com/kb/2806542)

Published on 3/13/2013		 Yes, this fix prevents a crash that sometimes happens when using an SR-IOV network adapter.  N/A Windows Server 2012 Hotfix
KB 2807654: "0x000000C2" Stop error when you try to back up a data deduplication-enabled volume in Windows 8 or Windows Server 2012

(http://support.microsoft.com/kb/2807654)

Published on 3/13/2013		 Yes, if you experience a crash during backup when using a deduplication-enabled volume. N/A Windows 8, Windows Server 2012 Hotfix
KB 2779768: Windows 8 and Windows Server 2012 cumulative update: December 2012

(http://support.microsoft.com/kb/2779768)		 Yes if using Windows network teaming and/or if using Windows network virtualization.  
N/A
Windows 8, Windows Server 2012 Windows Update, WSUS, Catalog, Download Center
KB 2822241: Windows 8 and Windows Server 2012 cumulative update: April 2013

(http://support.microsoft.com/kb/2822241)		 Yes if using Windows network teaming (KB 2818790).

Yes if VHDs are stored on Deduplicated volumes (KB 2819564)		  N/A Windows 8, Windows Server 2012 Windows Update, WSUS, Catalog, Download Center
KB 2811660: Windows 8 and Windows Server 2012 cumulative update: March 2013

(http://support.microsoft.com/kb/2811660)		 Yes if using Hyper-V switch extensions (KB 2792867)   N/A Windows 8, Windows Server 2012  Windows Update, WSUS, Catalog, Download Center
KB 2823643: Virtual machines freeze at the "Stopping" state after you shut down the virtual machines in Windows Server 2012

(http://support.microsoft.com/kb/2823643)		 Yes if clustering VMs with high network load  N/A  Windows Server 2012  Hotfix




See also this Knowledge Base article for a list of updates related to Windows Server 2012 Failover Clustering:

Recommended hotfixes and updates for Windows Server 2012-based Failover Clusters


For previous releases of Hyper-V, reference the following pages:

Hyper-V: Update List for Windows Server 2008 R2

And

List of updates for Hyper-V in Windows Server 2008

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Comments
  • 1 Mar 2013 2:50 PM

    Avoid data corruption with WS2012 Hyper-V cluster connected to a SAN! This bug with ODX and NTFS has caused a lot of pain for me and my team over the past week. Virtual machine files become corrupted during a live migration using ODX. It took down a domain controller and two customer environments. Initial recommendation from MS was to disable ODX. There has been two hotfixes released. Not very trusting of them yet, we opted to disable ODX for now.

    support.microsoft.com/.../2796995

  • 14 Mar 2013 10:02 PM

    We need to update this list, here is another hotfix for WS2012 Hyper-V, "0x000000D1" Stop error on a virtual machine in Windows Server 2012

    support.microsoft.com/.../en-us

  • 16 Mar 2013 4:14 AM

    I totally agree with AustinB.

    The mentioned kb2796995 is CRITICAL, the bug causes huge problems.

    At the moment it isn't mentioned in the 2012 Failover Cluster fix list either  (and it should)

  • 1 Apr 2013 9:47 AM

    ArdenW edited Revision 10. Comment: Corrected a KB2785638.

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