Failed to revert to VSS snapshot on the virtual hard disk '\\?\Volume{0f7b010b-f397-11e0-a76b-002655db9b10}\' of the virtual machine | Using HYPER-V 2008 R2

Hi,

I got this error on one of the VM (web server) backed up usng HYPER-V 2008 R2 and when I looked up, there is an microsoft hotfix for the same issue.

Microsoft KB Hotfix:
A backup of virtual machines fails when you use the Hyper-V VSS writer to back up virtual machines concurrently on a computer that is running Windows Server 2008

http://support.microsoft.com/kb/971394

But, the VM (web server) is running Windows 2008 R2 - SP1.

Hotfix says - To apply this hotfix, your computer must be running one of the following operating systems:

• Windows Server 2008
• Windows Server 2008 Service Pack 2 (SP2)

Does it mean it does not apply to Windows 2008 R2 | SP1 ?

When I checked the :

Swprv.dll version, it was higher than the one mentioned in the hotfix.

Thanks for any help.

-Ashwin