Event ID - 12640

Event Id12640
SourceMicrosoft-Windows-Hyper-V-VMMS
DescriptionCannot change media of type '%6' while virtual machine '%1' is in saved state. (Virtual machine ID %2)
Event InformationAccording to Microsoft :
Cause
This event is logged when Cannot change media of type while virtual machine is in saved state.
Resolution
Turn Off virtual machine and then change media change
Try changing the media only when the virtual machine is turned off.
Verify
The virtual machine is able to power on successfully at the end of the operation.
Reference LinksEvent ID 12640 from Source Microsoft-Windows-Hyper-V-VMMS

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