Can Windows Server 2012 run as a guest virutal machine under a Windows Server 2008 R2 Hyper-V host? If so, are there any important or notable restrictions on what the guest OS can do running in this scenario?

I've got a lab PC with lots of VMs running as guests on a W2K8R2 Hyper-V server. I don't do anything too exotic with the VMs, basically just running tests of my application software installations. I'd be looking for IIS, COM+ and general WinForms installation functionality.

Can I create a Windows Server 2012 guest VM to run in my environment or do I need to upgrade my lab PC to run Server 2012 Hyper-V in order to support a Server 2012 guest?

2 Answers 2


According to this MS KB article it is possible but may thow some warning messages here and there.

  • Thanks(+1) - That is a helpful KB, insofar as it tells you that the whole thing is out of the question (the way running 2K8 on 2K5 was). I've already got Windows 8 VM guests working fine. There were hiccups until the integration was installed (as per the KB).
    – Joel Brown
    Sep 4, 2012 at 19:18

You could try this:

An update that enables Windows 8 or Windows Server 2012 to be hosted in a Hyper-V virtual machine on Windows Server 2008 R2

Edit: hotfix 2526776 has been superseded by a newer hotfix:

You cannot run a Windows 8-based or Windows Server 2012-based virtual machine in Windows Server 2008 R2

  • Thanks for the KB link (+1). It didn't turn out that I needed this hotfix (not yet at least!) but it's good to know that the KB is there should I run into trouble.
    – Joel Brown
    Sep 4, 2012 at 20:57

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.