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Unable to Re-Image my Template VM in Azure Lab

cltraining 0 Reputation points
2025-07-08T21:13:06.0833333+00:00

I am unable to re-image my template VM in my Azure Lab. I get the following error when I attempt to click the "reimage template" button:

Virtual machine start operation failed. Try redeploying the virtual machine. If the issue persists, consider reimaging it. For further assistance, submit a support request.

I am unable to submit a support request to resolve because the MS support request workflow forces me into Microsoft QA.

Azure DevTest Labs
Azure DevTest Labs
An Azure service that is used for provisioning development and test environments.

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  1. Anusree Nashetty 5,820 Reputation points Microsoft External Staff Moderator
    2025-07-09T19:44:55.2233333+00:00

    Hi cltraining,

    The error message "Virtual machine start operation failed. Try redeploying the virtual machine. If the issue persists, consider reimaging it" typically occurs when the template VM is in an inconsistent or failed state. This may be due to a corrupted or missing disk/image reference, or a synchronization issue between the lab resource provider and the virtual machine.

    Attempt a Manual Redeploy: Go to Azure portal>In the VM pane, go to “Redeploy + reapply” under Support + Troubleshooting
    https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/windows/redeploy-to-new-node-windows

    Deallocate and Restart the Template VM: Stop the VM completely and wait until it shows “Stopped (deallocated)” then wait for few minutes and Start the VM again manually.

    A reimage may fail if quotas are exceeded. In the lab settings, check if you've reached the max number of VMs or disk size.

    See that Microsoft.DevTestLab is registered, if not register it.

    If you have any further queries, let me know. if the information is helpful, please click on Upvote.

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