VMs disappeard

We have Windows Server 2012 R2 that has 2 Virtual Machines inside running Win 7 Pro sp1. They were working fine until last week when I opened Hyper-V manager, there was no VM listed. Tried to connect to them by right clicking on Hyper-V manager --> connect to server but I get an error message : "An error occurred while attempting to connect to server "servername". Check that the Virtual Machine Management Service is running and that you are authorized to connect to the server". So I checked the services and found that VMMS doesn't start.

so far I have tried disabling Firewall, made an exception on Anti-Virus, Restarted Windows Management Instrumentation and none of them made any changes.

Do you guys have any ideas how to resolve this issue?

Many thanks
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
Reboot and try again.
PaoloBroggiAuthor Commented:
I've done it so many times. no changes.

Do you have any other ideas?
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