Configure size of encrypted password history
Verified with Windows 11 25H2 — updated on July 10, 2026
Supported on: At least Microsoft Windows 10 or later
Path in the GPO console
Computer Configuration\Administrative Templates\System\LAPS Description
Use this setting to configure how many previous encrypted passwords will be stored in Active Directory. Configuring this setting has no effect unless 1) the password has been configured to be backed up to Active Directory and 2) password encryption has been enabled. If this setting is enabled, the specified number of older passwords will be stored in Active Directory. If this setting is disabled or not configured, zero older passwords will be stored in Active Directory. This setting has a minimum allowed value of 0 passwords. This setting has a maximum allowed value of 12 passwords. See https://go.microsoft.com/fwlink/?linkid=2188435 for more information.
Registry
HKLM
SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\LAPS 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: Configure size of encrypted password history
; State: Enabled
; Supported on: At least Microsoft Windows 10 or later
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\LAPS]
"ADEncryptedPasswordHistorySize"=dword:00000000More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Configure size of encrypted password history
# State: Enabled
# Supported on: At least Microsoft Windows 10 or later
$path = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\LAPS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ADEncryptedPasswordHistorySize' -Value 0 -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: Configure size of encrypted password history
# State: Enabled
# Supported on: At least Microsoft Windows 10 or later
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\LAPS' -Name 'ADEncryptedPasswordHistorySize' -Expected 0 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Configure size of encrypted password history
# State: Enabled
# Supported on: At least Microsoft Windows 10 or later
$path = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\LAPS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ADEncryptedPasswordHistorySize' -Value 0 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Configure size of encrypted password history
# State: Enabled
# Supported on: At least Microsoft Windows 10 or later
# 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: Configure size of encrypted password history
# State: Enabled
# Supported on: At least Microsoft Windows 10 or later
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\LAPS' -Name 'ADEncryptedPasswordHistorySize' -Expected 0 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Configure size of encrypted password history
# State: Enabled
# Supported on: At least Microsoft Windows 10 or later
$path = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\LAPS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ADEncryptedPasswordHistorySize' -Value 0 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.