ive seen several customers running UniversalServer on HyperV, it's working, but you have to use this "legacy network card", otherwise if you fire up the iso in hyperV VM creation then the NIC is not recoqnized and the whole setup doesnt complete properly.
as Alex_CST said , it's a featurerequest to official support , but if you have a customer which is in need, you can run Universal with this trick,
hyperV yes supports centOS ubuntu whatever.. the problem is that it's only supported if you use those microsoft own hyperV driver/NIC package which you can install "afterwards" on the VM and so you dont have a chance to install during universal_server setup , neither it's not supported to install 3rd party driver packages on the universal , while you cant access the local_CLI cause of lack of the password - as you know you have to change via puttygen/putty SSH session and so you are in need of working network ;-)
regards
ben