I wrote a PowerShell command to query the current state of the VMs running on Hyper-V

Get-WMIObject -class "MSVM_ComputerSystem"-namespace "rootvirtualization"-computername "."

This will actually display a bunch of information about the VMs running on Hyper-V but what we’re really concerned about is the name of the VM and it’s currently running state. These two properties are associated with the ElementName and EnabledState attributes of the MSVM_ComputerSystem class. All we need to do with the command above is to pipe the results to a Select-Object cmdlet, specifying only these two properties, as follows

Get-WMIObject -class "MSVM_ComputerSystem"-namespace "rootvirtualization"-computername "." | Select-Object ElementName, EnabledState

While the EnabledState property will give you a bunch of numbers, I’m only concerned with those values equal to 2, which means that the VM is running. But, then, you might not remember what the value 2 means. So might as well write an entire script that checks for the value of the EnabledState property. I’ve used the GWMI alias to call the Get-WMIObject cmdlet

$VMs = gwmi -class "MSVM_ComputerSystem"-namespace "rootvirtualization"-computername "."
foreach ($VM IN $VMs)
{
switch ($VM.EnabledState)
{
2{$state="Running" }
3{$state="Stopped" }
32768{$state="Paused" }
32769{$state="Suspended" }
32770 {$state="Starting" }
32771{$state="Taking Snapshot" }
32773{$state="Saving" }
32774{$state="Stopping" }
}
write-host $VM.ElementName `,` $state
}

On a side note, make sure you are running as Administrator when working with this script as you will only see the VMs that your currently logged in profile has permission to access. Running as Administrator will show you all of the VMs configured on your Hyper-V server