Policy
Prevent users from making changes to Outlook profiles
This policy setting allows you to prevent users from accessing profile or account configuration tools through either Account Settings or through the Mail Control Panel Applet. If you enable this policy setting, users will see the error, "This feature has been disabled by your system administrator" if they select the Account Settings button under Account Information found by clicking on the File tab. Users will also be unable to access profile configuration the Mail Control Panel Applet. If you disable or do not configure this policy setting, users will be able to access Account Settings and the Mail Control Panel Applet normally.
6f873dc4dc1bL_PreventusersfrommakingchangestoOutlookprofilesRegistry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\outlook\setup\modifyaccounts (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\outlook\setup\modifyaccounts (disabled) = 0Policy notes
This policy setting allows you to prevent users from accessing profile or account configuration tools through either Account Settings or through the Mail Control Panel Applet. If you enable this policy setting, users will see the error, "This feature has been disabled by your system administrator" if they select the Account Settings button under Account Information found by clicking on the File tab. Users will also be unable to access profile configuration the Mail Control Panel Applet. If you disable or do not configure this policy setting, users will be able to access Account Settings and the Mail Control Panel Applet normally.