Configures LSASS to run as a protected process: registry value RunAsPPLComputerHKLM\Software\Policies\Microsoft\Windows\System

Policy ID
ConfigureLsaProtectedProcess
Scope
Computer Configuration
Supported on
At least Windows 10 Version 1903
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
System › Local Security Authority

Registry

RunAsPPL

REG_DWORDComputer
Enabled value
Depends on the option value
Element
Configure LSA to run as a protected process
Options
ItemStored value
Disabled0
Enabled with UEFI Lock1
Enabled without UEFI Lock2
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\System]

; Options (use only one)
; Disabled
"RunAsPPL"=dword:00000000
; Enabled with UEFI Lock
"RunAsPPL"=dword:00000001
; Enabled without UEFI Lock
"RunAsPPL"=dword:00000002
CMD
:: Options (use only one)

:: Disabled
reg add "HKLM\Software\Policies\Microsoft\Windows\System" /v "RunAsPPL" /t REG_DWORD /d 0 /f
:: Enabled with UEFI Lock
reg add "HKLM\Software\Policies\Microsoft\Windows\System" /v "RunAsPPL" /t REG_DWORD /d 1 /f
:: Enabled without UEFI Lock
reg add "HKLM\Software\Policies\Microsoft\Windows\System" /v "RunAsPPL" /t REG_DWORD /d 2 /f
PowerShell
# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows\System' -Force | Out-Null

# Options (use only one)
# Disabled
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\System' -Name 'RunAsPPL' -PropertyType DWord -Value 0 -Force | Out-Null
# Enabled with UEFI Lock
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\System' -Name 'RunAsPPL' -PropertyType DWord -Value 1 -Force | Out-Null
# Enabled without UEFI Lock
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\System' -Name 'RunAsPPL' -PropertyType DWord -Value 2 -Force | Out-Null