Hi,
I've had a Hyper-V running Windows Server 2008 for about two years. Today I did a Save on the VM in the Hyper-V Manager and then restarted my computer. When computer restarted I went to Start this VM and got the following error:

[Window Title]
Virtual Machine Connection

[Main Instruction]
The application encountered an error while attempting to change the state of 'WindowsServer2008'.

[Content]
'WindowsServer2008' failed to restore.

Microsoft Video Monitor (Instance ID BA8735EF-E3A9-4F1B-BADD-DBF3A5909915): Failed to restore with Error 'Catastrophic failure'.

[Expanded Information]
'WindowsServer2008' failed to restore. (Virtual machine ID 07307F40-CA38-4780-A62B-CD873410948D)

'WindowsServer2008' Microsoft Video Monitor (Instance ID BA8735EF-E3A9-4F1B-BADD-DBF3A5909915): Failed to restore with Error 'Catastrophic failure' (0x8000FFFF). (Virtual machine ID 07307F40-CA38-4780-A62B-CD873410948D)

===============

The Event Viewer had no additional error information and just repeated the above messages. I did not change any monitor or drivers on my system. I started up a different VM on my system that runs Win 8.1 and that came up with no problem.

What can I try to fix this?

Walter

Hi Walter,

If there have any vm backup running please first stop the backup processor please restart the VMM service then monitor the issue again.

More information:

Hyper-V: The Hyper-V Virtual Machine Management service must be running

https://technet.microsoft.com/en-us/library/ee956894%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396

Im glad to be of help to you!