Policy
Turn off Trusted Documents on the network
This policy setting allows you to turn off the trusted documents feature for documents opened from the network. If you enable this policy setting, users will always see security notifications for active content such as macros, ActiveX controls, data connections, etc. for documents opened from the network. If you disable or do not configure this policy setting, the trusted documents feature allows users to always allow active content in documents such as macros, ActiveX controls, data connections, etc. so that users are not prompted the next time they open the documents. Trusted documents are exempt from security notifications.
5b5f70e69fdbL_TurnOffTrustedDocumentsOnTheNetworkRegistry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\access\security\trusted documents\disablenetworktrusteddocuments (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\access\security\trusted documents\disablenetworktrusteddocuments (disabled) = 0Policy notes
This policy setting allows you to turn off the trusted documents feature for documents opened from the network. If you enable this policy setting, users will always see security notifications for active content such as macros, ActiveX controls, data connections, etc. for documents opened from the network. If you disable or do not configure this policy setting, the trusted documents feature allows users to always allow active content in documents such as macros, ActiveX controls, data connections, etc. so that users are not prompted the next time they open the documents. Trusted documents are exempt from security notifications.