You create Hyper-V virtual machines in several distinct steps. First, you need to create the VM itself—creating a virtual machine and the virtual hard drive and assign hardware such as memory, CPU cores, and DVD drives (and drive contents).
Once the VM is created, you need to work out how to install an OS into the VM. This process can be complex if you use native commands.
In this recipe, you create a simple VM that installs the OS into the VM based on GUI input. This recipe is therefore often the precursor to other configuration (that is you create a new VM and then add features and configure it per your requirements.
This is the same experience you would observe if you had a physical machine, with an empty C: drive that you boot from a Windows Server 2016 installation ISO.