Event ID - 12040

Event Id12040
SourceMicrosoft-Windows-Hyper-V-Worker
Description%1' failed to start after a reset. (Virtual machine %2)
Event InformationAccording to Microsoft :
Cause :
This event is logged when failed to start after a reset in virtual machine.
Resolution :
Check virtual machine
Check the environment the virtual machine is trying to start in:
1.The virtual machine RAM should be less than the physical memory available
2.The number of virtual processors should not exceed number of logical processors on the system
3.The eventlog (for any prior failures that lead to this failure)
Try starting the virtual machine again.
Verify :
The virtual machine is able to power on successfully.
Reference LinksEvent ID 12040 from Source Microsoft-Windows-Hyper-V-Worker

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