Security Level: registry value levelUserHKCU\software\policies\microsoft\office\16.0\ms project\security

Policy ID: L_PjSecurityLevel
Scope: User Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
Category: Microsoft Project 2016 › Project Options › Security › Tools | Macro

Registry

level

REG_DWORDUser

HKCU\software\policies\microsoft\office\16.0\ms project\security Current key

Enabled value: Depends on the option value
Element: Security Level

Options
Item	Stored value
Low (not recommended)	1
Medium	2
High	3
Very High	4

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\ms project\security]

; Options (use only one)
; Low (not recommended)
"level"=dword:00000001
; Medium
"level"=dword:00000002
; High
"level"=dword:00000003
; Very High
"level"=dword:00000004

CMD

:: Options (use only one)

:: Low (not recommended)
reg add "HKCU\software\policies\microsoft\office\16.0\ms project\security" /v "level" /t REG_DWORD /d 1 /f
:: Medium
reg add "HKCU\software\policies\microsoft\office\16.0\ms project\security" /v "level" /t REG_DWORD /d 2 /f
:: High
reg add "HKCU\software\policies\microsoft\office\16.0\ms project\security" /v "level" /t REG_DWORD /d 3 /f
:: Very High
reg add "HKCU\software\policies\microsoft\office\16.0\ms project\security" /v "level" /t REG_DWORD /d 4 /f

PowerShell

# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\ms project\security' -Force | Out-Null

# Options (use only one)
# Low (not recommended)
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\ms project\security' -Name 'level' -PropertyType DWord -Value 1 -Force | Out-Null
# Medium
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\ms project\security' -Name 'level' -PropertyType DWord -Value 2 -Force | Out-Null
# High
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\ms project\security' -Name 'level' -PropertyType DWord -Value 3 -Force | Out-Null
# Very High
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\ms project\security' -Name 'level' -PropertyType DWord -Value 4 -Force | Out-Null