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Fix an error occurs in setDefaultLanguage.ps1 during the creation of an AVD custom image template #835

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Fix an error occurs in setDefaultLanguage.ps1 during the creation of an AVD custom image template #835

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17448ce
Merge pull request #1 from Azure/master
Phoebe-0319 Jun 3, 2026
7626cb1
Fix an error occurs in setDefaultLanguage.ps1 during the creation of …
Phoebe-0319 Jun 3, 2026
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58 changes: 53 additions & 5 deletions CustomImageTemplateScripts/CustomImageTemplateScripts_2024-03-27/SetDefaultLang.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -135,11 +135,10 @@ $LanguagesDictionary.Add("Ukrainian (Ukraine)", "uk-UA")
$LanguagesDictionary.Add("English (Australia)", "en-AU")

try {
# Disable LanguageComponentsInstaller while installing language packs
# See Bug 45044965: Installing language pack fails with error: ERROR_SHARING_VIOLATION for more details
Disable-ScheduledTask -TaskName "\Microsoft\Windows\LanguageComponentsInstaller\Installation"
Disable-ScheduledTask -TaskName "\Microsoft\Windows\LanguageComponentsInstaller\ReconcileLanguageResources"
$osBuild = [System.Environment]::OSVersion.Version.Build
Write-Host "*** AVD AIB CUSTOMIZER PHASE: Set default Language - OS Build: $osBuild ***"

# Resolve language tag early so we can use it in the reconcile wait below.
$languageDetails = Get-RegionInfo -Name $Language

if($null -eq $languageDetails) {
Expand All @@ -149,6 +148,55 @@ try {
$GeoID = $languageDetails[1]
}

# On Win11 23H2 (Build 22631), Install-Language no longer delivers LpCab synchronously.
# The LanguagePack is delivered asynchronously by ReconcileLanguageResources, which starts
# running during the WU+Restart window between InstallLanguagePacks and SetDefaultLang.
# Wait for reconcile to finish delivering LpCab before disabling the tasks.
# See https://portal.microsofticm.com/imp/v5/incidents/details/805982457/summary.
if ($osBuild -eq 22631) {
# Only wait if the language was already installed by InstallLanguagePacks.ps1 (typical CIT flow).
# If language is not installed yet, skip the wait -- Install-Language below will handle it.
$preCheck = $null
try { $preCheck = Get-InstalledLanguage | Where-Object { $_.LanguageId -eq $LanguageTag } } catch {}

if ($preCheck) {
Write-Host "*** AVD AIB CUSTOMIZER PHASE: Set default Language - 23H2 detected, waiting for $LanguageTag LanguagePack reconciliation ***"
$maxWaitSeconds = 600 # 10 minutes
$waited = 0
$lpReady = $false
while ($waited -lt $maxWaitSeconds) {
try {
$lpCheck = Get-InstalledLanguage | Where-Object { $_.LanguageId -eq $LanguageTag }
$lpPacksValue = "$($lpCheck.LanguagePacks)"
Write-Host "*** AVD AIB CUSTOMIZER PHASE: Set default Language - LanguagePacks value: [$lpPacksValue] ***"
if ($lpPacksValue -and $lpPacksValue -ne "" -and $lpPacksValue -ne "None") {
$lpReady = $true
Write-Host "*** AVD AIB CUSTOMIZER PHASE: Set default Language - LanguagePack ready for $LanguageTag (waited ${waited}s) ***"
break
}
}
catch {
# If Get-InstalledLanguage fails, skip the wait
$lpReady = $true
break
}
Start-Sleep -Seconds 15
$waited += 15
Write-Host "*** AVD AIB CUSTOMIZER PHASE: Set default Language - Waiting for reconcile... (${waited}s / ${maxWaitSeconds}s) ***"
}
if (-not $lpReady) {
Write-Host "*** AVD AIB CUSTOMIZER PHASE: Set default Language - WARNING: LanguagePack not delivered after ${maxWaitSeconds}s, proceeding anyway ***"
}
} else {
Write-Host "*** AVD AIB CUSTOMIZER PHASE: Set default Language - 23H2 detected but $LanguageTag not yet installed, skipping reconcile wait ***"
}
}

# Disable LanguageComponentsInstaller while installing language packs
# See Bug 45044965: Installing language pack fails with error: ERROR_SHARING_VIOLATION for more details
Disable-ScheduledTask -TaskName "\Microsoft\Windows\LanguageComponentsInstaller\Installation" -ErrorAction SilentlyContinue
Disable-ScheduledTask -TaskName "\Microsoft\Windows\LanguageComponentsInstaller\ReconcileLanguageResources" -ErrorAction SilentlyContinue

$foundLanguage = $false;

try {
Expand Down Expand Up @@ -186,7 +234,7 @@ try {
else {
Write-Host "*** AVD AIB CUSTOMIZER PHASE : Set default language - Language pack for $LanguageTag is installed already***"
}

Set-systempreferreduilanguage -Language $LanguageTag
Set-WinSystemLocale -SystemLocale $LanguageTag
Set-Culture -CultureInfo $LanguageTag
Expand Down