How To Update Hyper-V Configuration Version with Powershell

By updating VM to the most current configuration version on Hyper-v hosts you get the best compatibility option on the VM making the VM best performance on the virtual environment.

Supported VM configuration versions for long-term servicing hosts

The following table lists the VM configuration versions for hosts running a long-term servicing version of Windows.

To Check The Hyper-V host Configuration version supported on the host :

Get-VMHostSupportedVersion -ComputerName "Hyper-v host name"

To check the current configuration version running the of all the VM running on one Hyper-v host :

Get-VM -ComputerName "Hyper-v host name" * | Format-Table Name, Version

To upgrade the VM configuration version you first need the shut down the VM, then execute :

Get-VM -ComputerName "Hyper-V Host Name" "VM name" | Update-VMVersion

Start the VM, You can also check on the Hyper-V manager the current running configuration version

Here is a powershell script that automatically upgrade all the VM’s on Hyper-v Host from Version 5

# Check configuration version of each VM on the Hyper-V host
$vms = Get-VM

foreach ($vm in $vms) {
    $vmName = $vm.Name
    $vmConfigVersion = $vm.Version

    Write-Host "Virtual Machine: $vmName"
    Write-Host "Configuration Version: $vmConfigVersion"

    # If configuration version is 5, upgrade it
    if ($vmConfigVersion -eq "5.0") {
        Write-Host "Shutting down $vmName..."
        Stop-VM -Name $vmName -Force

        # Upgrade configuration version
        Write-Host "Upgrading configuration version of $vmName..."
        Update-VMVersion -Name $vmName -Force

        # Start the VM
        Write-Host "Starting $vmName..."
        Start-VM -Name $vmName
    }
    else {
        Write-Host "$vmName is already on a higher configuration version. Skipping..."
    }

    Write-Host ""
}