Have a Hyper-V host that was originally built with Win2012R2 data center evaluation copy downloaded from the Microsoft site.
It was decided to use an SPLA licence for this machine - but of course the SPLA key can't activate the evaluation version.
So exported the VMs that need to be retained going forward and reinstalled the host OS with the version from VLSC.
Imported all the VMs - all working.
Then realised that the VMs themselves have the evaluation licences on as well - so can't activate them with the SPLA key.
Is there any way to resolve this without having to rebuild all the existing VMs?