Create VM with Custom AssetTag

New-VMWithAssetTag.ps1

function new-MyVM {

    [cmdletbinding()]
    param(
        [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName=$true,Position=0)]
        $name,
        [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName=$true,Position=1)]
        $AssetTag,
        $Switch = ( Get-VMSwitch -SwitchType External | Select-object -first  1 -ExpandProperty Name ),
        $DVDPath = 'C:\iso\ipxe\IPXE.NET.23.03.07.iso'
        )

    $ErrorActionPreference = 'stop'

    # Generate a Unique "Name" 
    for ( $i = '' ; get-VM "$($name)$($i)" -EA SilentlyContinue ; $i = "." + ( 1 + $i.trim('.') ) ) { } 

    $Path = join-path ( (get-vmhost).VirtualHardDiskPath ) "$($name)$($i)-$( [guid]::newguid() ).vhdx"
    write-verbose "Create VM: $($name)$($i)   $AssetTag   $path"
    $VM = new-vm -name "$($name)$($i)" -SwitchName $Switch -Generation 2 -NewVHDSizeBytes 120gb -NewVHDPath $path

    set-vm -VM $VM -ProcessorCount 4 -AutomaticCheckpointsEnabled $False 
    Set-VMFirmware -VM $VM -EnableSecureBoot Off 
    Set-VMMemory -VM $VM -DynamicMemoryEnabled $True -MinimumBytes 1gb -MaximumBytes 8gb -StartupBytes 2GB

    Set-VMKeyProtector -VM $VM -NewLocalKeyProtector
    Enable-VMTPM -vm $VM

    if ( $AssetTag ) { 

        $VSGSD = get-wmiobject -Namespace "Root\virtualization\v2" -class Msvm_VirtualSystemSettingData |
            Where-Object { ( $_.VirtualSystemType -eq 'Microsoft:Hyper-V:System:Realized' ) -and ( $_.VirtualSystemIdentifier -eq $VM.Id ) } 
        $VSGSD.ChassisAssetTag = $AssetTag

        $arguments = @($VM , $VSGSD.psbase.GetText([System.Management.TextFormat]::WmiDtd20),$null,$null)
        $VSMgtSvc = Get-WmiObject -NameSpace  "root\virtualization\v2" -Class "MsVM_virtualSystemManagementService"
        $VSMgtSvc.psbase.InvokeMethod("ModifySystemSettings", $arguments) | out-null

    }

    if ( $DVDPath ) { Add-VMDvdDrive -VM $VM -path $DVDPath }

    # Set boot order Disk, DVD, Network, 
    Set-VMFirmware -VM $VM -BootOrder (Get-VMFirmware -vm $VM | % BootOrder | Sort-Object Device -Descending | sort-Object boottype)

    # snapshot for repeated installs.
    Checkpoint-VM -vm $VM  -SnapshotName "Clean"

    Start-VM -VM $VM

}

###########################################
$ErrorActionPreference = 'stop'
$VerbosePreference = 'continue'

@( 
    [pscustomobject]@{ Name = 'iPXE-Win10-Prod';    AssetTag = '3992-462b-f644-8b6a-835b-ba6c-01' }
    [pscustomobject]@{ Name = 'iPXE-Win10-PreProd'; AssetTag = '3992-462b-f644-8b6a-835b-ba6c-02' }
    [pscustomobject]@{ Name = 'iPXE-Win11-Prod';    AssetTag = '3992-462b-f644-8b6a-835b-ba6c-03' }
    [pscustomobject]@{ Name = 'iPXE-Win11-PreProd'; AssetTag = '3992-462b-f644-8b6a-835b-ba6c-04' }
) | Out-GridView -OutputMode Multiple | new-MyVM