Update to improve the backup of Hyper-V Integrated components in Hyper-V Server 2012 R2

Kehtib: Hyper-V Server 2012 R2Windows Server 2012 R2 Standard


This article describes an update that improves the backup of Hyper-V Integrated components and that fixes the following issues.
  • Issue 1

    When you try to perform a live backup of virtual machines in Hyper-V 2012 R2 by using the Volume Shadow Copy Service (VSS), the backup operation is unsuccessful.

  • Issue 2

    When the Backup Guest operating system has multiple partitions, the system may fail because of time-outs in icsvc!CHyperVICProvider.

More Information

Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.


To apply this update in Windows Server 2012 R2, you must first have update 2919355 installed.

Restart requirement

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

Hotfix replacement information

This hotfix does not replace any previously released hotfix.


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


Learn about the terminology that Microsoft uses to describe software updates.