WS2016-MacMini-USB-boot-stick.ps1

# minimum size of USB stick 5.29GB

# Set here the path of your ISO file
$iso = "C:\path\to\Downloads\ISO\Server 2016\en_windows_server_2016_x64_dvd_9718492.iso"

# Clean ! will clear any plugged-in USB stick!!
Get-Disk | Where BusType -eq 'USB' | 
Clear-Disk -RemoveData -Confirm:$true -PassThru

# Convert GPT
if ((Get-Disk | Where BusType -eq 'USB').PartitionStyle -eq 'RAW') {
    Get-Disk | Where BusType -eq 'USB' | 
    Initialize-Disk -PartitionStyle MBR
} else {
    Get-Disk | Where BusType -eq 'USB' | 
    Set-Disk -PartitionStyle MBR
}

# Create partition primary and format to FAT32
$volume = Get-Disk | Where BusType -eq 'USB' 


if ($volume.Size -gt "34347155456") {

$volume | New-Partition -Size 32GB -AssignDriveLetter | 
Format-Volume -FileSystem FAT32

}

else {

$volume | New-Partition -UseMaximumSize -AssignDriveLetter | 
Format-Volume -FileSystem FAT32

}

$voldl = ($volume | Get-Partition).DriveLetter

if (Test-Path -Path "$($voldl):\") {

    # Mount iso
    $miso = Mount-DiskImage -ImagePath $iso -StorageType ISO -PassThru

    # Driver letter
    $dl = ($miso | Get-Volume).DriveLetter
}

cmd /c "cd $($dl):\boot && bootsect.exe /nt60 $($voldl):"

if (Test-Path -Path "$($dl):\sources\install.wim") {

    # Copy ISO content to USB except install.wim
    & (Get-Command "$($env:systemroot)\system32\robocopy.exe") @(
        "$($dl):\",
        "$($voldl):\"
        ,'/S','/R:0','/Z','/XF','install.wim','/NP'
    )

    # Split install.wim
    & (Get-Command "$($env:systemroot)\system32\dism.exe") @(
        '/split-image',
        "/imagefile:$($dl):\sources\install.wim",
        "/SWMFile:$($voldl):\sources\install.swm",
        '/FileSize:4096'
    )
}



# Eject USB
(New-Object -comObject Shell.Application).NameSpace(17).
ParseName("$($voldl):").InvokeVerb('Eject')

# Dismount ISO
Dismount-DiskImage -ImagePath $iso

Forked from https://gist.github.com/p0w3rsh3ll/9106e3dc1bd2023ee5afd8cd85054613.

USAGE

To install WS2016 on a MacMini. I has issues with audio when I booted UEFI so I changed it to MBR and the issue resolved.

Changes

Changed boot form UEFI to MBR
Limited volume size to 32GB on larger capacity USB sticks.