Computer Configuration > Administrative Templates > Microsoft Office 2016 (Machine) > Miscellaneous
Machine
HKLM\software\policies\microsoft\office\16.0\common\disableddocinspectors
This policy setting allows you to prevent document inspectors from running in Microsoft Office programs. If you enable this policy setting, specific document inspectors can be disabled by entering their Class ID (CLSID). The inspector CLSID can be found at HKEY_LOCAL_MACHINE\Software\Microsoft\Office\16.0\Word\"Document Inspectors" and similarly in Excel and PowerPoint. If you disable or do not configure this policy setting, document inspectors may be run in Microsoft Office programs.