Require lowercase letters
Verified with Windows 11 25H2 — updated on July 10, 2026
Supported on: At least Windows 10
Path in the GPO console
Computer Configuration\Administrative Templates\System\PIN Complexity Description
Use this policy setting to configure the use of lowercase letters in the PIN. If you enable this policy setting, Windows requires the user to include at least one lowercase letter in their PIN. If you disable this policy setting, Windows does not allow the user to include lowercase letters in their PIN. If you do not configure this policy setting, Windows allows, but does not require, lowercase letters in the PIN.
Registry
HKLM
SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity Value name: LowercaseLetters
Enabled: LowercaseLetters = 1
Disabled: LowercaseLetters = 2
Export Builder
BETAConfigure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.
These exports write the registry — this is not a managed GPO. ⓘ
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Require lowercase letters
; State: Enabled
; Supported on: At least Windows 10
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity]
"LowercaseLetters"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Require lowercase letters
# State: Enabled
# Supported on: At least Windows 10
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'LowercaseLetters' -Value 1 -Type DWordIntune XML
No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Require lowercase letters
# State: Enabled
# Supported on: At least Windows 10
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity' -Name 'LowercaseLetters' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Require lowercase letters
# State: Enabled
# Supported on: At least Windows 10
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'LowercaseLetters' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Require lowercase letters
# State: Enabled
# Supported on: At least Windows 10
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Require lowercase letters
# State: Enabled
# Supported on: At least Windows 10
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity' -Name 'LowercaseLetters' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Require lowercase letters
# State: Enabled
# Supported on: At least Windows 10
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'LowercaseLetters' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.