I’m in the midst of a lot of testing, so needed the ability to quickly spin up Hyper-V virtual machines…

This is nothing special, but I threw together the following script, which gives you a nice little template, suitable for Windows 11.

# Create a new Gen2 Hyper-V VM (with Windows 11 in mind)
# Configure the VM, Start and then Launch it.
# Love from James Vincent
# January 2024

$VMName = read-host "Enter the name of the VM"
$ISO = read-host "Enter the path to your ISO file"
$VMPath = "C:\VMs"

New-VM -Name "$VMName" -MemoryStartupBytes 4GB -Path "$VMPath" -Generation 2 -NewVHDPath "$VMPath\$VMName\Virtual Hard Disks\$VMName.vhdx" -NewVHDSizeBytes 60GB -SwitchName "Default Switch"
Set-VM -Name "$VMName" -ProcessorCount 4
Add-VMDvdDrive -VMName "$VMName" -Path "$ISO"
Get-VMDvdDrive -VMName "$VMName"
Set-VMFirmware "$VMName" -EnableSecureBoot On
Set-VMFirmware -VMName "$VMName" -FirstBootDevice $(Get-VMDvdDrive -VMName "$VMName")
$DefaultBootOrder = Get-VMFirmware -VMName $VMName | Select-Object -ExpandProperty BootOrder
$BootOrder = $DefaultBootOrder | Where-Object { $_.BootType -ne "Network" }
Set-VMFirmware -VMName $VMName -BootOrder $BootOrder
Set-VMKeyProtector -VMName "$VMName" -NewLocalKeyProtector
Enable-VMTPM -VMName "$VMName"
Set-VM -Name "$VMName" -CheckpointType Disabled
Start-VM -Name "$VMName"
vmconnect localhost $VMName

It works really well in conjunction with this script from Andrew Taylor, which will download the latest Windows ISO and inject an Autopilot JSON file for you…