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fix first run probs

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Chris Titus Tech
2026-03-02 13:19:28 -06:00
parent d0012449ad
commit 8db5e6b461
1 changed files with 62 additions and 7 deletions
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69
functions/private/Invoke-WinUtilISOScript.ps1
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@@ -9,8 +9,18 @@ function Invoke-WinUtilISOScript {
extended Storage & Network drivers from the ChrisTitusTech/storage-lan-drivers
repository (requires git, installed via winget if absent), applies offline registry
tweaks (hardware bypass, privacy, OOBE, telemetry, update suppression), deletes
CEIP/WU scheduled-task definition files, and optionally drops autounattend.xml and
removes the support\ folder from the ISO contents directory.
CEIP/WU scheduled-task definition files, and optionally writes autounattend.xml to
the ISO root and removes the support\ folder from the ISO contents directory.
All setup scripts embedded in the autounattend.xml <Extensions><File> nodes
(Specialize.ps1, DefaultUser.ps1, FirstLogon.ps1, UserOnce.ps1, etc.) are written
directly into the WIM at their target paths under C:\Windows\Setup\Scripts\. This
pre-staging is necessary because Windows Setup strips unrecognised-namespace XML
elements — including the Schneegans <Extensions> block — when copying the answer
file to %WINDIR%\Panther\unattend.xml. Without pre-staging the [scriptblock] that
tries to extract scripts from the Panther copy receives $null, no scripts reach
disk, and both the specialize-pass actions and FirstLogonCommands silently fail.
Mounting/dismounting the WIM is the caller's responsibility (e.g. Invoke-WinUtilISO).
.PARAMETER ScratchDir
@@ -46,7 +56,7 @@ function Invoke-WinUtilISOScript {
.NOTES
Author : Chris Titus @christitustech
GitHub : https://github.com/ChrisTitusTech
Version : 26.02.25b
Version : 26.03.02
#>
param (
[Parameter(Mandatory)][string]$ScratchDir,
@@ -366,10 +376,55 @@ function Invoke-WinUtilISOScript {
Set-ISOScriptReg 'HKLM\zSOFTWARE\Microsoft\Windows\CurrentVersion\OOBE' 'BypassNRO' 'REG_DWORD' '1'
if ($AutoUnattendXml) {
# ── Place autounattend.xml inside the WIM (Sysprep) ──────────────────
$sysprepDest = "$ScratchDir\Windows\System32\Sysprep\autounattend.xml"
Set-Content -Path $sysprepDest -Value $AutoUnattendXml -Encoding UTF8 -Force
& $Log "Written autounattend.xml to Sysprep directory."
# ── Pre-stage embedded setup scripts directly into the WIM ────────────
# The autounattend.xml (Schneegans generator format) embeds all setup
# scripts as <Extensions><File> nodes. The specialize-pass command that
# is supposed to extract them reads C:\Windows\Panther\unattend.xml, but
# Windows Setup strips unrecognised-namespace elements (including the
# entire <Extensions> block) when it copies the answer file to that path.
# As a result [scriptblock]::Create($null) throws, no scripts are written
# to C:\Windows\Setup\Scripts\, Specialize.ps1 and DefaultUser.ps1 never
# run, and FirstLogon.ps1 is absent so FirstLogonCommands silently fails.
#
# Writing the scripts directly into the WIM guarantees they are present
# on the target drive after Windows Setup applies the image, regardless
# of whether the Panther extraction step succeeds.
try {
$xmlDoc = [xml]::new()
$xmlDoc.LoadXml($AutoUnattendXml)
$nsMgr = New-Object System.Xml.XmlNamespaceManager($xmlDoc.NameTable)
$nsMgr.AddNamespace("sg", "https://schneegans.de/windows/unattend-generator/")
$fileNodes = $xmlDoc.SelectNodes("//sg:File", $nsMgr)
if ($fileNodes -and $fileNodes.Count -gt 0) {
foreach ($fileNode in $fileNodes) {
# Paths in the XML are absolute Windows paths (e.g. C:\Windows\Setup\Scripts\…).
# Strip the drive-letter prefix so we can root them under $ScratchDir.
$absPath = $fileNode.GetAttribute("path")
$relPath = $absPath -replace '^[A-Za-z]:[/\\]', ''
$destPath = Join-Path $ScratchDir $relPath
$destDir = Split-Path $destPath -Parent
New-Item -Path $destDir -ItemType Directory -Force -ErrorAction SilentlyContinue | Out-Null
# Match the encoding logic used by the original ExtractScript.
$ext = [IO.Path]::GetExtension($destPath).ToLower()
$encoding = switch ($ext) {
{ $_ -in '.ps1', '.xml' } { [System.Text.Encoding]::UTF8 }
{ $_ -in '.reg', '.vbs', '.js' } { [System.Text.UnicodeEncoding]::new($false, $true) }
default { [System.Text.Encoding]::Default }
}
$bytes = $encoding.GetPreamble() + $encoding.GetBytes($fileNode.InnerText.Trim())
[System.IO.File]::WriteAllBytes($destPath, $bytes)
& $Log "Pre-staged setup script: $relPath"
}
} else {
& $Log "Warning: no <Extensions><File> nodes found in autounattend.xml — setup scripts not pre-staged."
}
} catch {
& $Log "Warning: could not pre-stage setup scripts from autounattend.xml: $_"
}
# ── Place autounattend.xml at the ISO / USB root ──────────────────────
# Windows Setup reads this file first (before booting into the OS),