The last few days, one of the virtual machines, a VM running Centos 7 is shut down late in the evening and then not restarted. When I try and start it manually I get the error
'CENTOS7' failed to start worker process: Logon failure: the user has not been granted the requested logon type at this computer. (0x80070569). (Virtual machine ID B976A15D-BE00-4E60-80A8-576F15CE4605)
'CENTOS7' failed to restore virtual machine state. (Virtual machine ID B976A15D-BE00-4E60-80A8-576F15CE4605)
If I do a gpupdate then I can start it again. How odd, I don't know why that works, but I remember reading about it so I tried it out of desperation.
Based on the timing I think it's backup related and that the VM is being temporarily shut down / put in saved state for copying, but then fails to reboot. Something todo with the account rights. I don't know how to find the right user for the VM, don't think there is one. I assume it uses the hyper-V services accounts which I see are set to "Local system account".