Last couple of days, Microsoft has official release Windows Server 2012 R2 and Windows 8.1 RTM to public. It is time to create a base image of these operating system and use by VMM to deploy VM.
I’ve use Convert-WindowsImage.ps
Windows Server 2012 R2
Based on my testing, it can create a dynamic or fixed VHD/ VHDX Generation 1 VM without any problem.
You can download the script from here
Note:- At this moment, this script is NOT supported or tested to create Windows Server 2012 R2 and Windows 8.1 . Use it at your own risk. However, it work fine on my environment. So give it a try and see if it work on your side.