Prevent memory overwrite on restart: registry value MorBehaviorComputerHKLM\Software\Policies\Microsoft\FVE

Policy ID
MorBehavior_Name
Scope
Computer Configuration
Supported on
Windows Server 2012 R2, Windows 8.1, Windows Server 2012, Windows 8, Windows Server 2008, Windows 7, and Windows Vista
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Windows Components › BitLocker Drive Encryption

Registry

MorBehavior

REG_DWORDComputer
Enabled value
1
Disabled value
0
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\FVE]

; Options (use only one)
; Enabled
"MorBehavior"=dword:00000001
; Disabled
"MorBehavior"=dword:00000000
CMD
:: Options (use only one)

:: Enabled
reg add "HKLM\Software\Policies\Microsoft\FVE" /v "MorBehavior" /t REG_DWORD /d 1 /f
:: Disabled
reg add "HKLM\Software\Policies\Microsoft\FVE" /v "MorBehavior" /t REG_DWORD /d 0 /f
PowerShell
# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Microsoft\FVE' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\FVE' -Name 'MorBehavior' -PropertyType DWord -Value 1 -Force | Out-Null
# Disabled
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\FVE' -Name 'MorBehavior' -PropertyType DWord -Value 0 -Force | Out-Null