User Configuration > Administrative Templates > Microsoft Outlook 2016 > Miscellaneous
User
HKCU\software\policies\microsoft\office\16.0\outlook\options\logging
This policy setting governs logging of connected add-ins to the Windows event log. If you enable this policy setting, an inventory of connected Outlook add-ins will not be written to the Windows event log. If you disable or do not configure this policy setting, an inventory of connected Outlook add-ins will be written to the Windows event log.