How to Handle Windows Server Licensing Issues After V2V Migration?

Do you happen to have volume licensing? With that, you only pay for the servers you have currently activated, not the total number of activations. You should have a MAK key that allows a limited number of activations—typically more than enough for most needs.

I faced activation issues after migrating several VMs from ESXi to Hyper-V as well. Sometimes they'd fail to activate, or I'd hit the maximum activation limit for my license key. I found success with the new online activation portal, which you can access by signing in with a Microsoft account. It doesn’t even have to be linked to the tenant associated with the licenses. Give that a shot—I've seen tips suggesting using a non-existent .gov email address for extra success! You might find that works for you too! [Here’s the link for the activation portal.](https://visualsupport.microsoft.com/)

This is a common headache with Windows Server OEM/Retail licenses during V2V migrations. Your CSP is partly correct in that they can increase the limit, but you'll need to document this as a 'hardware change' since V2V counts as one. Instead of pushing for a new license purchase, ask for a license reassignment. If they’re uncooperative, escalate the issue to Microsoft directly, especially with documentation from your multiple migrations to emphasize the frequency of the issue.

There's no such thing as license mobility with Windows Server, which is why you're hitting activation problems. The virtual hardware change usually triggers the need for re-activation. If you have valid MAK activation keys, consider running a script that uses the SLMGR command on boot to automate reactivation.

If your Hyper-V hosts are Windows Server Datacenter with the Hyper-V role, you can use AVMA with Microsoft's GVLK keys, which work for ADBA or a valid KMS server if you have one.