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 with most recent updates placed at the top.
Applies To: Windows Server 2012
Note: 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 not seen the symptoms.
Note: 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?
Note: Some updates are required only under certain circumstances, as noted in the table.
Note: On this link you can find a tool to help you identify which hotfixes and updates are installed and missing:
Data |
KB Article |
Recommended? |
OS |
Type |
10 Jun 14 |
KB 2955163: Windows RT, Windows 8, and Windows Server 2012 update rollup: May 2014 |
Yes |
W8 |
WU WSUS Catalog DL Center |
14 Apr 14 |
KB 2937634: Hyper-V Host Unable To Reconnect To WS2012 SOFS After Unplanned Failover |
Yes, if used with Scale-Out File Server |
W8 |
Hotfix |
10 Apr 14 |
KB 2928439: VM Network Fails If “Minimum Bandwidth Weight” Is Enabled On WS2012 Hyper-V |
Yes |
WS2012 |
Hotfix |
10 Apr 14 |
Yes |
WS2012 |
Hotfix |
|
9 Apr 14 |
KB 2928678: Windows RT, Windows 8, and Windows Server 2012 update rollup: March 2014 |
Yes
Includes KB2922514 KB2925429 KB2925981 KB2927910 KB2908783 KB2929414 KB2928562 KB2930287
|
W8 |
WU WSUS Catalog DL Center |
8 Apr 14 |
No Included in KB928678 |
W8 |
|
|
14 Jan 14 |
KB 2870270 Update that improves cloud service provider resiliency in Windows Server 2012 |
No |
WS2012 |
See KB 2878635 |
24 Dec 13 |
Yes |
W8 |
Hotfix |
|
23 Dec 13 |
Yes
|
WS2012 |
Replaces: 2869923 2908415 |
|
10 Dec 13 |
Yes, if you run in a Virtual Fibre Channel environment |
WS2012 |
Hotfix |
|
29 Nov 13 |
Yes. Not directly Hyper-V related, but updates a number of Failover Clustering-related binaries |
W8 WS2012 |
Hotfix |
|
30 Sep 13 |
Yes |
WS2012 |
Hotfix |
|
21 Aug 13 |
KB 2779768: Windows 8 and Windows Server 2012 cumulative update: December 2012 |
Yes, install on all Hyper-V hosts and supporting storage servers. Fixes a number of issues including: |
W8 WS2012 |
WU WSUS Catalog DL Center |
16 Aug 13 |
KB 2855336: Windows RT, Windows 8, and Windows Server 2012 update rollup: July 2013 |
Yes, this update rollup package includes performance and reliability improvements |
W8 |
WU WSUS Catalog DL Center |
13 Aug 13 |
Yes, if KB 2750149 is installed (KB 2750149 is available via Windows Update) |
WS2012 |
WU WSUS Catalog DL Center
Fixes: |
|
12 Jul 13 |
KB 2822241: Windows 8 and Windows Server 2012 cumulative update: April 2013
|
Yes, install on all Hyper-V hosts and supporting storage servers. Fixes a number of issues |
W8 WS2012 |
WU WSUS Catalog DL Center
Replaces: |
9 Jul 13 |
KB2770917: Windows 8 and Windows Server 2012 update rollup: November 2012 |
Yes, install on all Hyper-V hosts and supporting storage servers. Fixes a number of issues.
Updates IC Components! 6.2.9200.16433 (2008 and later guests)
6.2.9200.16384 (2003 and XP guests)
|
W8 WS2012 |
WU WSUS Catalog DL Center
Replaces: 2777166 2758246 2780342 2771821 2771744 2778171 2780523 |
9 Jul 13 |
Yes, if Hyper-V hosts are clustered and virtual machines are stored on scale out fileserver. |
WS2012 |
Hotfix |
|
9 Jul 13 |
KB 2840681: Computer does not shut down after you remove a virtual switch in Windows Server 2012 |
Yes, if using Virtual Machine Queue (VMQ) with a network team |
WS2012 |
Hotfix |
9 Jul 13 |
|
Yes. Not directly Hyper-V related, but updates the Volume Shadow Copy Service volume snapshot driver, which could improve backup reliability |
W8 |
Hotfix, DL Center |
5 Jul 13 |
KB 2836988: Windows 8 and Windows Server 2012 update rollup: May 2013
|
Yes, install on all Hyper-V hosts and supporting storage servers. Fixes a number of issues |
W8 WS2012 |
WU WSUS Catalog DL Center |
13 Jun 13 |
Yes, install on all Hyper-V hosts using Shared Nothing Live Migration |
WS2012 |
Hotfix |
|
12 Jun 13 |
Yes, if using a Windows Server 2012 file server to connect to SAN/NAS storage and then serving up SMB3 storage to separate Hyper-V hosts |
WS2012 |
Hotfix
Related: |
|
12 Jun 13 |
Yes. Prevents an issue that can cause a long shutdown process and/or a virtual machine crash |
WS2012 |
Hotfix |
|
12 Jun 13 |
Yes, install on all Hyper-V hosts to prevent a system crash when VHD or VHDX files are stored or copied to a remote SMB share |
WS2012 |
Hotfix |
|
11 Jun 13 |
KB 2845533: Windows RT, Windows 8, and Windows Server 2012 update rollup: June 2013 |
Yes. Not directly Hyper-V related, but updates the Volume Shadow Copy Service binaries, which could improve backup reliability. |
W8 WS2012 |
WU WSUS Catalog DL Center |
15 May 13 |
KB 2836402: You cannot add VHD files to Hyper-V virtual machines in Windows Server 2012
|
Yes, to correct an issue that could prevent the addition of VHDs to virtual machines under special circumstances |
WS2012 |
Hotfix |
31 May 13 |
KB 2811660: Windows 8 and Windows Server 2012 update rollup: March 2013
|
Yes, install on all Hyper-V hosts and supporting storage servers. Fixes a number of issues |
W8 WS2012 |
WU WSUS Catalog DL Center
Replaces: 2815769 2800088 2812829 2823233 |
29 May 13 |
KB 2795944: Windows 8 and Windows Server 2012 update rollup: February 2013
|
Yes, includes a number of storage-related (MPIO, NTFS) and network-related fixes |
W8 WS2012 |
WU WSUS Catalog DL Center |
24 May 13 |
KB 2806542: "0x000000D1" Stop error on a virtual machine in Windows Server 2012 |
Yes, this fix prevents a crash that sometimes happens when using an SR-IOV network adapter |
WS2012 |
Hotfix |
24 May 13 |
KB 2809117: Add-TargetPortToMaskingSet PowerShell command fails in Windows Server 2012
|
Yes, but this update applies to Windows Server 2012 file servers / storage servers supporting a Hyper-V environment |
WS2012 |
Hotfix |
24 May 13 |
|
Yes, install on all Hyper-V hosts and supporting storage servers to prevent a crash during backup when using a deduplication-enabled volume |
W8 WS2012
|
Hotfix Catalog |
15 May 13 |
Yes, if using Windows Azure Online Backup |
WS2012 |
Hotfix |
|
15 May 13 |
Yes, if using a Windows Azure SQL Database with virtual machines running on Windows Server 2012 |
WS2012 |
Hotfix Catalog |
|
6 May 13 |
KB 2756872: Windows 8 Client and Windows Server 2012 General Availability Update Rollup |
Yes, install on all Hyper-V hosts and supporting storage servers. Fixes a number of networking-related issues in Windows Server 2012 RTM |
W8 WS2012 |
WU WSUS Catalog DL Center |
9 Apr 13 |
Yes, if using virtual switch extensions with the intention of sending packets through every network adapter |
WS2012 |
Hotfix |
|
9 Apr 13 |
Yes if clustering VMs with high network load |
WS2012 |
Hotfix |
|
13 Mar 13 |
|
Yes, if using Hyper-V in a VDI or Remote Desktop Virtualization Host scenario with Windows 8 or Windows Server 2012 as virtual machines |
WS20122 |
Hotfix |
31 Jan 13 |
Yes, if hosting a VDI platform on Hyper-V and using AMD processors |
WS2012 |
Hotfix |
|
9 Jan 13 |
|
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 |
WS2012 |
Hotfix
|
http://support.microsoft.com/kb/2905249