Custom markup warning: registry value custommarkupwarningUserHKCU\software\policies\microsoft\office\16.0\word\options

Policy ID
L_CustomMarkupWarning
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 Word 2016 › Word Options › Advanced

Registry

custommarkupwarning

REG_DWORDUser
Enabled value
Depends on the option value
Element
Custom markup warning:
Options
ItemStored value
Do not prompt0
Prompt1
Always prompt2
Prompt and open the file read-only3
Always prompt and open the file read-only4
Do not prompt and open the file read-only5
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\word\options]

; Options (use only one)
; Do not prompt
"custommarkupwarning"=dword:00000000
; Prompt
"custommarkupwarning"=dword:00000001
; Always prompt
"custommarkupwarning"=dword:00000002
; Prompt and open the file read-only
"custommarkupwarning"=dword:00000003
; Always prompt and open the file read-only
"custommarkupwarning"=dword:00000004
; Do not prompt and open the file read-only
"custommarkupwarning"=dword:00000005
CMD
:: Options (use only one)

:: Do not prompt
reg add "HKCU\software\policies\microsoft\office\16.0\word\options" /v "custommarkupwarning" /t REG_DWORD /d 0 /f
:: Prompt
reg add "HKCU\software\policies\microsoft\office\16.0\word\options" /v "custommarkupwarning" /t REG_DWORD /d 1 /f
:: Always prompt
reg add "HKCU\software\policies\microsoft\office\16.0\word\options" /v "custommarkupwarning" /t REG_DWORD /d 2 /f
:: Prompt and open the file read-only
reg add "HKCU\software\policies\microsoft\office\16.0\word\options" /v "custommarkupwarning" /t REG_DWORD /d 3 /f
:: Always prompt and open the file read-only
reg add "HKCU\software\policies\microsoft\office\16.0\word\options" /v "custommarkupwarning" /t REG_DWORD /d 4 /f
:: Do not prompt and open the file read-only
reg add "HKCU\software\policies\microsoft\office\16.0\word\options" /v "custommarkupwarning" /t REG_DWORD /d 5 /f
PowerShell
# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\word\options' -Force | Out-Null

# Options (use only one)
# Do not prompt
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\word\options' -Name 'custommarkupwarning' -PropertyType DWord -Value 0 -Force | Out-Null
# Prompt
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\word\options' -Name 'custommarkupwarning' -PropertyType DWord -Value 1 -Force | Out-Null
# Always prompt
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\word\options' -Name 'custommarkupwarning' -PropertyType DWord -Value 2 -Force | Out-Null
# Prompt and open the file read-only
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\word\options' -Name 'custommarkupwarning' -PropertyType DWord -Value 3 -Force | Out-Null
# Always prompt and open the file read-only
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\word\options' -Name 'custommarkupwarning' -PropertyType DWord -Value 4 -Force | Out-Null
# Do not prompt and open the file read-only
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\word\options' -Name 'custommarkupwarning' -PropertyType DWord -Value 5 -Force | Out-Null