1. Shutdown Win 2016 Server VM.
2. Remove from inventory (Keep VM folder path on datastore noted)
3. Edit .vmx file of VM and add 2 below entries in end of file and save it.
vhv.enable = "TRUE"
hypervisor.cpuid.v0 = "FALSE"
4. Now register VM in vCenter inventory from updated vmx file.
5. Power On and install Hyper-V.