System time of a virtual machine becomes incorrect after it crashes or resets in a 64-bit Windows 8-based or Windows Server 2012-based Hyper-V host

S’applique à : Windows Server 2012 DatacenterWindows Server 2012 DatacenterWindows Server 2012 Standard

Symptoms


Consider the following scenario:

  • You create a virtual machine on a Hyper-V host that runs on a 64-bit version of Windows 8 or Windows Server 2012.
  • You disable the Hyper-V time synchronization integration service on the virtual machine.
  • The virtual machine crashes or resets.

In this situation, the system time of the virtual machine is incorrect when it starts again.

Cause


This issue occurs because the time information of the virtual machine is not saved to VHD as expected when it crashes or resets. When the virtual machine starts again, it uses old and out-of-date time information.

Resolution


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that 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.

Prerequisites

To apply this hotfix, you must be running Windows 8 or Windows Server 2012.

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You might have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information