Windows VM was migrated to Azure using migration appliance. VM still doesn't boot up showing 'Hyper-V' loading screen under boot diagnostics.

Question

Windows VM was migrated to Azure using migration appliance.

VM was migrated from a VMware environment, and Hyper-V role is not installed on the machine

After migration ,Booted up the VM and got a recovery screen where stated 'Choose and option', 'Continue', 'Use a device', 'Troubleshoot', 'Turn off your PC'. Troubleshooted the VM with the recommended steps to complete BCD edit using repair VM where successfully completed after which the VM still doesn't boot up showing 'Hyper-V' loading screen under boot diagnostics.

Answer 1

Hello @Elisha George ,

Thank you for reaching out to Microsoft Q&A platform. Happy to answer your question. This particular boot issue is mostly observed due to some registry keys or its references been missing which are part of mandatory boot drivers like Vmbus.sys that needs to be there for VMs to boot on azure

I am suspecting this boot driver registry is missing on the on-premises VM itself, but it never have problem booting the VM on-premises however is mandatory for azure.

Please login to the on-premises VM, if exists. Then navigate to below registry key and check for all the required keys as highlighted in the below snippet and expand them all to capture a screenshot, share the same with me

HKEY_LOCAL_MACHINE\SYSTEM\DriverDatabase\DriverPackages\wvmbus.inf_amd64_xxxxxxxxxxx

Example

Answer 2

https://docs.microsoft.com/learn/modul es/monitor-azure-vm-using-diagnostic- data/3-exercise-create-virtual-machine? 11

activate-azure-sandbox=true

Answer 3

https://docs.microsoft.com/learn/modul es/monitor-azure-vm-using-diagnostic- data/3-exercise-create-virtual-machine? 11

activate-azure-sandbox=true