My guess, but just a guess, is that you are having the same problem I had.

I had mistakenly encrypted my Win 10 machine prior to adding the "...EFI" line in the .vmx file.  Once I restarted my VM, I also got the "No OS/unable to boot" message followed by the attempt to boot from a boot server via the network card. Obviously that failed too.  My only solution was to start over from a previous copy (you may have a Snapshot) of my Win 10 VM and do things in the correct order.  Then, everything worked fine.  Hope this helps.