Hi masterram95,
If you have already added the Hyper-V role to the Windows Server, you can create Hyper-V VMs using the New-VM cmdlet in Windows PowerShell. Open Windows PowerShell as administrator and run a command like below.
Example 1
New-VM -Name "new 1" -MemoryStartupBytes 512MB
This example creates a new virtual machine named new 1 that has 512 MB of memory.
Example 2
New-VM -Name "new 2" -MemoryStartupBytes 1GB -NewVHDPath d:\vhd\base.vhdx -NewVHDSizeBytes 40GB
This example creates a virtual machine named new 2 that has 1 GB of memory and that is connected to a new 40 GB virtual hard disk that uses the VHDX format.
You can either run the command in a PowerShell window directly or save it as a .PS1 script file.
Please refer to this link for more details about the New-VM cmdlet.