change virtualsystemIdentifier using WMI

Question

Hi,
how to change the VM GUID (VirtualSystemIdentifier/ConfigurationID) using WMI or powershell ?

https://learn.microsoft.com/en-us/windows/win32/hyperv_v2/msvm-virtualsystemsettingdata

Answer 1

Hi baluT,
Based on my experience, we cannot change the VM GUID by PowerShell or WMI. VM GUID is automatically generated after the VM is created.
As a workaround, if you want to change it, you can create a new VM connected to the old VHD, and the VM GUID will be recreated.
I did the test in my lab:
This is the original GUID of VM 14

And then I deleted the VM and created a new one attached to the old VHD 14.
As you can see, the GUID of 14 has been recreated.

Thanks for your time!

Best Regards,

Mico Mi

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