I configured a test environment with 2 hosts (centos), hosted engine and NFS storage for data domain and iso domain.

I noticed that windows 2012 ISOs are marked as "unknown" in iso domain and therefore I can't attach them to virtual machines.

Maybe something is wrong with my iso? I tried to do a fresh download with same result. Centos, Fedora and Windows 10 iso are working, so I think the iso domain is ok.

Did someone else noticed such behaviour? Any solution?

Thanks

Stefano