Summary: Use Windows PowerShell to find the network adapter names for all virtual machines.

 How can I use Windows PowerShell on my laptop running Windows 8.1 to find the name
          of the network adapter that is used by each of my virtual machines?

 Use the Get-VM cmdlet to retrieve all of the virtual machines,
          and pipe the result to the Get-VMNetworkAdapter:

Get-Vm | Get-VMNetworkAdapter

Note: This command must be run with Admin rights.