Unable to enable vtpm by using Set-AzVMUefi and then Update-AzVM

元亨杨 1

I use azure powershell create a Win11 VM(V2), then I found the vTPM is not enabled by default , then I try to use Set-AzVMUefi -VM $ItemVM -EnableVtpm $true -EnableSecureBoot $true and then use Update-AzVM -ResourceGroupName "xxxxxx" -VM $ItemVM then I got below issue.

How can I use powershell to enable the vTPM? Any suggestion would be much appreciated.

Cristian SPIRIDON 4,471 Reputation points

2021-11-03T05:52:07.333+00:00

Hi @元亨杨 ,

Can you change this property from azure portal?

Also I found that you can use the REST API from powershell to create the VM with vTPM:
https://learn.microsoft.com/en-us/rest/api/compute/virtual-machines/create-or-update#create-a-vm-with-uefi-settings-of-secureboot-and-vtpm.

Hope this helps.