User Configuration > Administrative Templates > Microsoft Office 2016 > Security Settings
User
HKCU\software\policies\microsoft\office\common\smart tag
This policy setting allows you to prevent Word 2016 and Excel 2016 from loading managed code extensions. If you enable this policy setting, Word 2016 and Excel 2016 will not load managed code extensions. If you disable or do not configure this policy setting, Word 2016 and Excel 2016 will load managed code extensions automatically.