This update must be installed only on a problematic Windows Server host that has the Hyper-V role installed and that's running on an Intel Ivy Bridge, Ivy Town, or Haswell processor.
For VMware hosts, contact your original equipment manufacturer to obtain the updated firmware that contains the fixed Intel microcode. VMware hosts must have this BIOS update installed to fix the issue. As per VMware, please open a support ticket with VMware referencing PR #1178834 to log the issue.
Additionally, this issue can also be fixed by upgrading the Intel processors on the Hyper-V or VMware hosts.
Get the hotfix for Windows Server 2012 R2, Windows Server 2012, or Windows Server 2008 R2A supported hotfix is available from Microsoft. 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, visit 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.
PrerequisitesTo apply this hotfix, you must be running Windows Server 2012 R2, Windows Server 2012 or Windows Server 2008 R2 SP1.
Registry informationTo apply this hotfix, you do not have to make any changes to the registry.
Restart requirementYou may have to restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace a previously released hotfix.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
Article ID: 2970215 - Last Review: Mar 23, 2016 - Revision: 1