Fix Win11 Creator product-key validation failures (#4791)

* feat: Enhance Win11 Creator with edition ID handling and update autounattend.xml generation

* Strengthen Pester coverage for config and function files
This commit is contained in:
Chris Titus
2026-07-01 17:15:26 -05:00
committed by GitHub
parent 8062815655
commit 104c763132
6 changed files with 406 additions and 108 deletions

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@@ -51,6 +51,7 @@ Click **Run Windows ISO Modification and Creator** to start the customization pr
- **Disable BitLocker and device encryption** — removes startup overhead
- **Disable Chat icon** — removes chat taskbar button
- **Strip unused editions** — keeps only your selected edition, saving 12 GB per removed edition
- **Pin the selected edition during setup** — writes setup metadata so OEM firmware keys for a different edition do not force the installer down the wrong product-key path
- **Clean the component store** — runs DISM cleanup to reclaim another 300800 MB
**Privacy & Telemetry Tweaks:**
@@ -132,6 +133,7 @@ When you install Windows 11 from your modified ISO:
| USB drive not showing up | Plug it in, wait a few seconds, then click **Refresh** |
| Modification seems stuck | The WIM dismount step is slow — wait at least 10 minutes before assuming it's frozen |
| "Access Denied" error | Make sure WinUtil is running as Administrator |
| "Setup has failed to validate the product key" | Recreate the ISO with the latest WinUtil. The creator now removes stale `PID.txt`, writes `sources\ei.cfg`, and pins the selected image in `autounattend.xml` so setup does not use an embedded OEM key for a different edition |
---

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@@ -213,6 +213,59 @@ function Invoke-WinUtilISOModify {
})
}
function Get-WinUtilEditionIdFromName {
param([string]$EditionName)
$normalizedName = ($EditionName -replace '^Windows\s+11\s+', '').Trim()
switch -Regex ($normalizedName) {
'^Home Single Language$' { return 'CoreSingleLanguage' }
'^Home N$' { return 'CoreN' }
'^Home$' { return 'Core' }
'^Pro for Workstations N$' { return 'ProfessionalWorkstationN' }
'^Pro for Workstations$' { return 'ProfessionalWorkstation' }
'^Pro Education N$' { return 'ProfessionalEducationN' }
'^Pro Education$' { return 'ProfessionalEducation' }
'^Pro N$' { return 'ProfessionalN' }
'^Pro$' { return 'Professional' }
'^Education N$' { return 'EducationN' }
'^Education$' { return 'Education' }
'^Enterprise LTSC N$' { return 'EnterpriseSN' }
'^Enterprise LTSC$' { return 'EnterpriseS' }
'^Enterprise N$' { return 'EnterpriseN' }
'^Enterprise$' { return 'Enterprise' }
default { return '' }
}
}
function Get-WinUtilMountedImageEditionId {
param(
[Parameter(Mandatory)][string]$MountDir,
[string]$EditionName,
[scriptblock]$Logger
)
try {
$dismOutput = & dism /English "/Image:$MountDir" /Get-CurrentEdition 2>&1
foreach ($line in $dismOutput) {
if ($line -match '^\s*Current Edition\s*:\s*(.+?)\s*$') {
$editionId = $Matches[1].Trim()
if ($editionId) {
if ($Logger) { $null = $Logger.Invoke("Detected mounted image EditionID: $editionId") }
return $editionId
}
}
}
} catch {
if ($Logger) { $null = $Logger.Invoke("Warning: could not detect mounted image EditionID with DISM: $_") }
}
$fallbackEditionId = Get-WinUtilEditionIdFromName -EditionName $EditionName
if ($fallbackEditionId -and $Logger) {
$null = $Logger.Invoke("Using fallback EditionID '$fallbackEditionId' from selected edition name.")
}
return $fallbackEditionId
}
function Get-DismImageInfoMap {
param(
[Parameter(Mandatory)][string]$ImagePath,
@@ -322,9 +375,10 @@ function Invoke-WinUtilISOModify {
Log "Mounting install.wim (Index ${selectedWimIndex}: $selectedEditionName) at $mountDir..."
Mount-WindowsImage -ImagePath $localWim -Index $selectedWimIndex -Path $mountDir
SetProgress "Modifying install.wim..." 45
$selectedEditionId = Get-WinUtilMountedImageEditionId -MountDir $mountDir -EditionName $selectedEditionName -Logger ${function:Log}
Log "Applying WinUtil modifications to install.wim..."
Invoke-WinUtilISOScript -ScratchDir $mountDir -ISOContentsDir $isoContents -AutoUnattendXml $autounattendContent -InjectCurrentSystemDrivers $injectDrivers -Log { param($m) Log $m }
Invoke-WinUtilISOScript -ScratchDir $mountDir -ISOContentsDir $isoContents -AutoUnattendXml $autounattendContent -InjectCurrentSystemDrivers $injectDrivers -InstallEditionId $selectedEditionId -InstallImageIndex 1 -Log { param($m) Log $m }
SetProgress "Cleaning up component store (WinSxS)..." 56
Log "Running DISM component store cleanup (/ResetBase)..."

View File

@@ -34,6 +34,16 @@ function Invoke-WinUtilISOScript {
them into install.wim and boot.wim index 2 (Windows Setup PE).
Defaults to $false.
.PARAMETER InstallEditionId
Optional. Windows edition ID for the selected image, for example Professional
or Core. Used to write sources\ei.cfg so setup does not fall back to an
embedded firmware product key for a different edition.
.PARAMETER InstallImageIndex
Optional. Image index that setup should install from the final install.wim.
Win11 Creator exports the selected edition to a single-image WIM, so this
defaults to 1.
.PARAMETER Log
Optional ScriptBlock for progress/status logging. Receives a single [string] argument.
@@ -56,6 +66,8 @@ function Invoke-WinUtilISOScript {
[string]$ISOContentsDir = "",
[string]$AutoUnattendXml = "",
[bool]$InjectCurrentSystemDrivers = $false,
[string]$InstallEditionId = "",
[int]$InstallImageIndex = 1,
[scriptblock]$Log = { param($m) Write-Output $m }
)
@@ -108,6 +120,146 @@ function Invoke-WinUtilISOScript {
}
}
function Get-WinUtilISOScriptChildElement {
param (
[Parameter(Mandatory)][System.Xml.XmlElement]$Parent,
[Parameter(Mandatory)][string]$Name,
[Parameter(Mandatory)][string]$NamespaceUri
)
foreach ($childNode in $Parent.ChildNodes) {
if ($childNode.NodeType -eq [System.Xml.XmlNodeType]::Element -and
$childNode.LocalName -eq $Name -and
$childNode.NamespaceURI -eq $NamespaceUri) {
return [System.Xml.XmlElement]$childNode
}
}
$childElement = $Parent.OwnerDocument.CreateElement($Name, $NamespaceUri)
[void]$Parent.AppendChild($childElement)
return $childElement
}
function ConvertTo-WinUtilISOAnswerFile {
param (
[Parameter(Mandatory)][string]$XmlContent,
[int]$ImageIndex = 1
)
if ($ImageIndex -lt 1) { $ImageIndex = 1 }
$unattendNs = "urn:schemas-microsoft-com:unattend"
$wcmNs = "http://schemas.microsoft.com/WMIConfig/2002/State"
$xmlDoc = [xml]::new()
$xmlDoc.PreserveWhitespace = $true
$xmlDoc.LoadXml($XmlContent)
if ($xmlDoc.DocumentElement.NamespaceURI -ne $unattendNs) {
throw "Unexpected autounattend.xml namespace: $($xmlDoc.DocumentElement.NamespaceURI)"
}
if (-not $xmlDoc.DocumentElement.HasAttribute("xmlns:wcm")) {
$xmlDoc.DocumentElement.SetAttribute("wcm", "http://www.w3.org/2000/xmlns/", $wcmNs)
}
$nsMgr = New-Object System.Xml.XmlNamespaceManager($xmlDoc.NameTable)
$nsMgr.AddNamespace("u", $unattendNs)
$windowsPESettings = $xmlDoc.SelectSingleNode('/u:unattend/u:settings[@pass="windowsPE"]', $nsMgr)
if (-not $windowsPESettings) {
$windowsPESettings = $xmlDoc.CreateElement("settings", $unattendNs)
$windowsPESettings.SetAttribute("pass", "windowsPE")
[void]$xmlDoc.DocumentElement.PrependChild($windowsPESettings)
}
$setupComponent = $windowsPESettings.SelectSingleNode('u:component[@name="Microsoft-Windows-Setup"]', $nsMgr)
if (-not $setupComponent) {
$setupComponent = $xmlDoc.CreateElement("component", $unattendNs)
$setupComponent.SetAttribute("name", "Microsoft-Windows-Setup")
$setupComponent.SetAttribute("processorArchitecture", "amd64")
$setupComponent.SetAttribute("publicKeyToken", "31bf3856ad364e35")
$setupComponent.SetAttribute("language", "neutral")
$setupComponent.SetAttribute("versionScope", "nonSxS")
[void]$windowsPESettings.AppendChild($setupComponent)
}
$productKeyNodes = @($setupComponent.SelectNodes("u:UserData/u:ProductKey", $nsMgr))
foreach ($productKeyNode in $productKeyNodes) {
$keyNode = $productKeyNode.SelectSingleNode("u:Key", $nsMgr)
$keyValue = if ($keyNode) { $keyNode.InnerText.Trim() } else { "" }
if ([string]::IsNullOrWhiteSpace($keyValue) -or $keyValue -eq "00000-00000-00000-00000-00000") {
[void]$productKeyNode.ParentNode.RemoveChild($productKeyNode)
}
}
$imageInstall = Get-WinUtilISOScriptChildElement -Parent $setupComponent -Name "ImageInstall" -NamespaceUri $unattendNs
$osImage = Get-WinUtilISOScriptChildElement -Parent $imageInstall -Name "OSImage" -NamespaceUri $unattendNs
$installFrom = Get-WinUtilISOScriptChildElement -Parent $osImage -Name "InstallFrom" -NamespaceUri $unattendNs
$existingMetadataNodes = @($installFrom.SelectNodes("u:MetaData", $nsMgr))
foreach ($metadataNode in $existingMetadataNodes) {
[void]$installFrom.RemoveChild($metadataNode)
}
$metadata = $xmlDoc.CreateElement("MetaData", $unattendNs)
$actionAttribute = $xmlDoc.CreateAttribute("wcm", "action", $wcmNs)
$actionAttribute.Value = "add"
[void]$metadata.Attributes.Append($actionAttribute)
$keyElement = $xmlDoc.CreateElement("Key", $unattendNs)
$keyElement.InnerText = "/IMAGE/INDEX"
[void]$metadata.AppendChild($keyElement)
$valueElement = $xmlDoc.CreateElement("Value", $unattendNs)
$valueElement.InnerText = [string]$ImageIndex
[void]$metadata.AppendChild($valueElement)
[void]$installFrom.AppendChild($metadata)
return $xmlDoc.OuterXml
}
function Write-WinUtilISOEditionConfig {
param (
[Parameter(Mandatory)][string]$ContentRoot,
[string]$EditionId,
[scriptblock]$Logger
)
if (-not (Test-Path $ContentRoot)) {
return
}
$sourcesDir = Join-Path $ContentRoot "sources"
New-Item -Path $sourcesDir -ItemType Directory -Force | Out-Null
$pidPath = Join-Path $sourcesDir "PID.txt"
if (Test-Path $pidPath) {
Remove-Item -Path $pidPath -Force
& $Logger "Removed sources\PID.txt so setup will not force a stale or mismatched product key."
}
if ([string]::IsNullOrWhiteSpace($EditionId)) {
& $Logger "Warning: selected edition ID is unknown - skipping sources\ei.cfg fallback."
return
}
$eiCfgPath = Join-Path $sourcesDir "ei.cfg"
$eiCfg = @"
[EditionID]
$EditionId
[Channel]
Retail
[VL]
0
"@.Trim()
Set-Content -Path $eiCfgPath -Value $eiCfg -Encoding ASCII -Force
& $Logger "Written sources\ei.cfg for EditionID '$EditionId'."
}
# -- 1. Remove provisioned AppX packages ----------------------------------
& $Log "Removing provisioned AppX packages..."
@@ -218,9 +370,17 @@ function Invoke-WinUtilISOScript {
Set-ISOScriptReg 'HKLM\zSOFTWARE\Microsoft\Windows\CurrentVersion\OOBE' 'BypassNRO' 'REG_DWORD' '1'
if ($AutoUnattendXml) {
$preparedAutoUnattendXml = $AutoUnattendXml
try {
$preparedAutoUnattendXml = ConvertTo-WinUtilISOAnswerFile -XmlContent $AutoUnattendXml -ImageIndex $InstallImageIndex
& $Log "Prepared autounattend.xml to install image index $InstallImageIndex without forcing a product key."
} catch {
& $Log "Warning: could not prepare autounattend.xml image selection: $_"
}
try {
$xmlDoc = [xml]::new()
$xmlDoc.LoadXml($AutoUnattendXml)
$xmlDoc.LoadXml($preparedAutoUnattendXml)
$nsMgr = New-Object System.Xml.XmlNamespaceManager($xmlDoc.NameTable)
$nsMgr.AddNamespace("sg", "https://schneegans.de/windows/unattend-generator/")
@@ -251,13 +411,17 @@ function Invoke-WinUtilISOScript {
if ($ISOContentsDir -and (Test-Path $ISOContentsDir)) {
$isoDest = Join-Path $ISOContentsDir "autounattend.xml"
Set-Content -Path $isoDest -Value $AutoUnattendXml -Encoding UTF8 -Force
Set-Content -Path $isoDest -Value $preparedAutoUnattendXml -Encoding UTF8 -Force
& $Log "Written autounattend.xml to ISO root ($isoDest)."
}
} else {
& $Log "Warning: autounattend.xml content is empty - skipping OOBE bypass file."
}
if ($ISOContentsDir -and (Test-Path $ISOContentsDir)) {
Write-WinUtilISOEditionConfig -ContentRoot $ISOContentsDir -EditionId $InstallEditionId -Logger $Log
}
& $Log "Disabling reserved storage..."
Set-ISOScriptReg 'HKLM\zSOFTWARE\Microsoft\Windows\CurrentVersion\ReserveManager' 'ShippedWithReserves' 'REG_DWORD' '0'

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@@ -1,83 +1,110 @@
# Import Config Files
$global:importedconfigs = @{}
Get-ChildItem .\config | Where-Object {$_.Extension -eq ".json"} | ForEach-Object {
$global:importedconfigs[$psitem.BaseName] = Get-Content $psitem.FullName | ConvertFrom-Json
}
#===========================================================================
# Tests - Application Installs
# Tests - Config Files
#===========================================================================
Describe "Config Files" -ForEach @(
@{
name = "applications"
config = $('{
"winget": "value",
"choco": "value",
"category": "value",
"content": "value",
"description": "value",
"link": "value"
}' | ConvertFrom-Json)
},
@{
name = "tweaks"
undo = $true
}
) {
Context "$name config file" {
It "Imports with no errors" {
$global:importedconfigs.$name | should -Not -BeNullOrEmpty
$configRoot = Join-Path $PSScriptRoot "..\config"
$configCases = @(
Get-ChildItem -Path $configRoot -Filter *.json | ForEach-Object {
@{
Name = $_.Name
Path = $_.FullName
}
if ($config) {
It "Imports should be the correct structure" {
$applications = $global:importedconfigs.$name | Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty name
$template = $config | Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty name
$result = New-Object System.Collections.Generic.List[System.Object]
Foreach ($application in $applications) {
$compare = $global:importedconfigs.$name.$application | Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty name
if (-not $compare) {
throw "Comparison object for application '$application' is null."
}
if (-not $template) {
throw "Template object for application '$application' is null."
}
if ($(Compare-Object $compare $template) -ne $null) {
$result.Add($application)
}
}
}
)
$result | Select-String "WPF*" | should -BeNullOrEmpty
Describe "Config files" {
foreach ($configCase in $configCases) {
It "imports $($configCase.Name) with no JSON errors" -TestCases $configCase {
param([string]$Name, [string]$Path)
try {
Get-Content -Path $Path -Raw | ConvertFrom-Json | Out-Null
} catch {
throw "Failed to import ${Name}: $_"
}
}
if($undo) {
It "Tweaks should contain original Value" {
$tweaks = $global:importedconfigs.$name | Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty name
$result = New-Object System.Collections.Generic.List[System.Object]
}
}
foreach ($tweak in $tweaks) {
$Originals = @(
@{
name = "registry"
value = "OriginalValue"
},
@{
name = "service"
value = "OriginalType"
}
)
Foreach ($original in $Originals) {
$TotalCount = ($global:importedconfigs.$name.$tweak.$($original.name)).count
$OriginalCount = ($global:importedconfigs.$name.$tweak.$($original.name).$($original.value) | Where-Object {$_}).count
if($TotalCount -ne $OriginalCount) {
$result.Add("$Tweak,$($original.name)")
}
}
Describe "Applications config" {
$testCase = @{ Path = (Join-Path $configRoot "applications.json") }
It "contains at least one application" -TestCases $testCase {
param([string]$Path)
$applications = Get-Content -Path $Path -Raw | ConvertFrom-Json
$applicationEntries = @($applications.PSObject.Properties)
if ($applicationEntries.Count -eq 0) {
throw "applications.json does not contain any application entries."
}
}
It "contains required display fields and at least one install source" -TestCases $testCase {
param([string]$Path)
$applications = Get-Content -Path $Path -Raw | ConvertFrom-Json
$requiredFields = @("category", "content", "description", "link")
$invalidEntries = New-Object System.Collections.Generic.List[string]
foreach ($entry in $applications.PSObject.Properties) {
$entryFields = @($entry.Value.PSObject.Properties.Name)
foreach ($field in $requiredFields) {
if ($entryFields -notcontains $field -or [string]::IsNullOrWhiteSpace([string]$entry.Value.$field)) {
$invalidEntries.Add("$($entry.Name) missing $field")
}
$result | Select-String "WPF*" | should -BeNullOrEmpty
}
$hasInstallSource = $false
foreach ($sourceField in @("winget", "choco")) {
if ($entryFields -contains $sourceField -and -not [string]::IsNullOrWhiteSpace([string]$entry.Value.$sourceField)) {
$hasInstallSource = $true
}
}
if (-not $hasInstallSource) {
$invalidEntries.Add("$($entry.Name) missing winget/choco install source")
}
}
if ($invalidEntries.Count -gt 0) {
throw ($invalidEntries -join "`n")
}
}
}
Describe "Tweaks config" {
$testCase = @{ Path = (Join-Path $configRoot "tweaks.json") }
It "contains undo metadata for registry and service actions" -TestCases $testCase {
param([string]$Path)
$tweaks = Get-Content -Path $Path -Raw | ConvertFrom-Json
$invalidTweaks = New-Object System.Collections.Generic.List[string]
foreach ($tweak in $tweaks.PSObject.Properties) {
foreach ($registryEntry in @($tweak.Value.registry)) {
if ($null -eq $registryEntry) { continue }
if ($registryEntry.PSObject.Properties.Name -notcontains "OriginalValue" -or
[string]::IsNullOrWhiteSpace([string]$registryEntry.OriginalValue)) {
$invalidTweaks.Add("$($tweak.Name),registry")
}
}
foreach ($serviceEntry in @($tweak.Value.service)) {
if ($null -eq $serviceEntry) { continue }
if ($serviceEntry.PSObject.Properties.Name -notcontains "OriginalType" -or
[string]::IsNullOrWhiteSpace([string]$serviceEntry.OriginalType)) {
$invalidTweaks.Add("$($tweak.Name),service")
}
}
}
if ($invalidTweaks.Count -gt 0) {
throw ($invalidTweaks -join "`n")
}
}
}

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@@ -1,53 +1,71 @@
#===========================================================================
# Tests - Functions
#===========================================================================
Describe "Comprehensive Checks for PS1 Files in Functions Folder" {
BeforeAll {
# Get all .ps1 files in the functions folder
$ps1Files = Get-ChildItem -Path ./functions -Filter *.ps1 -Recurse
$functionRoot = Join-Path $PSScriptRoot "..\functions"
$functionCases = @(
Get-ChildItem -Path $functionRoot -Filter *.ps1 -Recurse | ForEach-Object {
@{
Name = $_.Name
Path = $_.FullName
}
}
)
foreach ($file in $ps1Files) {
Context "Checking $($file.Name)" {
It "Should import without errors" {
{ . $file.FullName } | Should -Not -Throw
}
Describe "Function source files" {
foreach ($functionCase in $functionCases) {
Context "Checking $($functionCase.Path)" {
It "has no parser errors" -TestCases $functionCase {
param([string]$Path)
It "Should have no syntax errors" {
$tokens = $null
$syntaxErrors = $null
$null = [System.Management.Automation.PSParser]::Tokenize((Get-Content -Path $file.FullName -Raw), [ref]$syntaxErrors)
$syntaxErrors.Count | Should -Be 0
}
[System.Management.Automation.Language.Parser]::ParseFile($Path, [ref]$tokens, [ref]$syntaxErrors) | Out-Null
It "Should not use deprecated cmdlets or aliases" {
$content = Get-Content -Path $file.FullName -Raw
# Example check for a known deprecated cmdlet or alias
$content | Should -Not -Match 'DeprecatedCmdlet'
# Add more checks as needed
}
It "Should follow naming conventions for functions" {
$functions = (Get-Command -Path $file.FullName).Name
foreach ($function in $functions) {
$function | Should -Match '^[a-z]+(-[a-z]+)*$' # Enforce lower-kebab-case
if ($syntaxErrors.Count -ne 0) {
throw ($syntaxErrors | Out-String)
}
}
It "Should define mandatory parameters for all functions" {
. $file.FullName
$functions = (Get-Command -Path $file.FullName).Name
foreach ($function in $functions) {
$parameters = (Get-Command -Name $function).Parameters.Values
$mandatoryParams = $parameters | Where-Object { $_.Attributes.Mandatory -eq $true }
$mandatoryParams.Count | Should -BeGreaterThan 0
It "defines top-level functions with approved verb-noun names" -TestCases $functionCase {
param([string]$Path)
$tokens = $null
$syntaxErrors = $null
$approvedVerbs = (Get-Verb).Verb
$ast = [System.Management.Automation.Language.Parser]::ParseFile($Path, [ref]$tokens, [ref]$syntaxErrors)
if ($syntaxErrors.Count -ne 0) {
throw ($syntaxErrors | Out-String)
}
$topLevelFunctions = @(
$ast.EndBlock.Statements |
Where-Object { $_ -is [System.Management.Automation.Language.FunctionDefinitionAst] }
)
if ($topLevelFunctions.Count -eq 0) {
throw "No top-level function was found in $Path."
}
foreach ($function in $topLevelFunctions) {
if ($function.Name -notmatch '^[A-Za-z]+-[A-Za-z0-9]+$') {
throw "Function '$($function.Name)' does not use Verb-Noun naming."
}
$verb = ($function.Name -split '-', 2)[0]
if ($approvedVerbs -notcontains $verb) {
throw "Function '$($function.Name)' does not use an approved PowerShell verb."
}
}
}
It "Should have all functions available after import" {
. $file.FullName
$functions = (Get-Command -Path $file.FullName).Name
foreach ($function in $functions) {
{ Get-Command -Name $function -CommandType Function } | Should -Not -BeNullOrEmpty
It "imports without throwing" -TestCases $functionCase {
param([string]$Path)
try {
. $Path
} catch {
throw "Failed to import ${Path}: $_"
}
}
}

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@@ -0,0 +1,33 @@
#===========================================================================
# Tests - Win11 Creator
#===========================================================================
Describe "Win11 Creator setup media" {
It "autounattend template does not force a product key" {
$templatePath = Join-Path $PSScriptRoot "..\tools\autounattend.xml"
[xml]$xml = Get-Content -Path $templatePath -Raw
$nsMgr = New-Object System.Xml.XmlNamespaceManager($xml.NameTable)
$nsMgr.AddNamespace("u", "urn:schemas-microsoft-com:unattend")
$productKeyCount = $xml.SelectNodes("//u:ProductKey", $nsMgr).Count
if ($productKeyCount -ne 0) {
throw "Expected no ProductKey nodes, found $productKeyCount."
}
}
It "ISO script accepts selected edition setup metadata" {
$isoScriptPath = Join-Path $PSScriptRoot "..\functions\private\Invoke-WinUtilISOScript.ps1"
$content = Get-Content -Path $isoScriptPath -Raw
foreach ($pattern in @(
'\[string\]\$InstallEditionId',
'\[int\]\$InstallImageIndex',
'sources\\ei\.cfg',
'PID\.txt'
)) {
if ($content -notmatch $pattern) {
throw "Expected Invoke-WinUtilISOScript.ps1 to match pattern: $pattern"
}
}
}
}