create_iso.ps1

<# This script contains all of the command shown in my blog post: Create Zero-Touch Windows 10 ISO
http://blogs.catapultsystems.com/mdowst/archive/2017/12/11/create-zero-touch-windows-10-iso/ 
#>

$ISO = "c:\users\administrator\desktop\source.iso"
$FolderPath = "c:\users\administrator\desktop\iso_staging"
$NewISO = 'c:\users\administrator\desktop\modified.iso'

###################################
#
# Prep the ISO Files
#
###################################

# Get current drive letters
$drives = (Get-Volume).DriveLetter

# Mount the ISO image
$image = Mount-DiskImage -ImagePath $ISO -PassThru

# Get the new drive letter
$drive = (Get-Volume | ?{$drives -notcontains $_.DriveLetter -and $_.DriveLetter -ne $null}).DriveLetter

# Create destination folder if it doesn't exist
If (!(test-path $FolderPath)){
    New-Item -type directory -Path $FolderPath}

# Copy the ISO files
Get-ChildItem -Path "$($drive):\" | %{
    Copy-Item -Path $_.FullName -Destination $FolderPath -recurse -Force}

# dismount the ISO
$image | Dismount-DiskImage

# Delete the bootfix.bin
Remove-Item (Join-Path $FolderPath "boot\bootfix.bin") -Force

# Rename the efisys files
Rename-Item (Join-Path $FolderPath "efi\microsoft\boot\efisys.bin") "efisys_prompt.bin" 
Rename-Item (Join-Path $FolderPath "efi\microsoft\boot\efisys_noprompt.bin") "efisys.bin" 

# Rename install.esd to install.wim
If (Test-Path $(Join-Path $FolderPath "source\install.esd")){
	Rename-Item $(Join-Path $FolderPath "source\install.esd") "install.wim"
}

###################################
#
# Create Autounattend.xml
#
###################################
#[string]$password = Read-Host -Prompt "Enter the admin password to use"
#[string]$ComputerName = Read-Host -Prompt "Enter the computer name use '*' to randomly generate it"
#[string]$RegisteredOwner = Read-Host -Prompt "Enter the Registered Owner"
#[string]$RegisteredOrganization = Read-Host -Prompt "Enter the Registered Organization"
#
#$AutounattendXML = $(Join-Path $FolderPath "Autounattend.xml")
## Download the sample Autounattend.xml
##$Uri = "https://gist.githubusercontent.com/mdowst/e81cc0608a0c554d8c3381ebc7b6e15e/raw/dc55c6c1eef66fc0c4db0652ce8300e9ff507e0f/Autounattend.xml"
##Invoke-WebRequest -Uri $Uri -OutFile $AutounattendXML
#
## load the Autounattend.xml
#[xml]$Autounattend = Get-Content $AutounattendXML
#
## Update the values
#($Autounattend.unattend.settings | ?{$_.pass -eq 'oobeSystem'}).component.AutoLogon.Password.Value = $password
#($Autounattend.unattend.settings | ?{$_.pass -eq 'oobeSystem'}).component.UserAccounts.AdministratorPassword.Value = $password
#($Autounattend.unattend.settings | ?{$_.pass -eq 'specialize'}).component.ComputerName = $ComputerName
#($Autounattend.unattend.settings | ?{$_.pass -eq 'specialize'}).component.RegisteredOwner = $RegisteredOwner
#($Autounattend.unattend.settings | ?{$_.pass -eq 'specialize'}).component.RegisteredOrganization = $RegisteredOrganization
#
## Save the updated XML file
#$Autounattend.Save($AutounattendXML)


###################################
#
# Create the ISO
#
###################################

# Create the ISO image
$command = $(Join-Path 'oscdimg.exe')
$arguments = '-m','-o','-u2','-udfver102',"-bootdata:2#p0,e,b$(Join-Path $FolderPath 'boot\etfsboot.com')#pEF,e,b$(Join-Path $FolderPath 'efi\microsoft\boot\efisys.bin')",$FolderPath,$NewISO

& $command $arguments