Policy

Do not open files in unsafe locations in Protected View

This policy setting lets you determine if files located in unsafe locations will open in Protected View. If you have not specified unsafe locations, only the "Downloaded Program Files" and "Temporary Internet Files" folders are considered unsafe locations. If you enable this policy setting, files located in unsafe locations do not open in Protected View. If you disable or do not configure this policy setting, files located in unsafe locations open in Protected View.

Policy
Pack Microsoft Office
Category Microsoft Excel 2016 / Excel Options / Security / Trust Center / Protected View
Policy ID ef250451fe29
Internal name L_DoNotOpenFilesInUnsafeLocationsInProtectedView

Registry

Copy registry mappings

HKCU\software\policies\microsoft\office\16.0\excel\security\protectedview\disableunsafelocationsinpv (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\excel\security\protectedview\disableunsafelocationsinpv (disabled) = 0

Policy notes

This policy setting lets you determine if files located in unsafe locations will open in Protected View. If you have not specified unsafe locations, only the "Downloaded Program Files" and "Temporary Internet Files" folders are considered unsafe locations. If you enable this policy setting, files located in unsafe locations do not open in Protected View. If you disable or do not configure this policy setting, files located in unsafe locations open in Protected View.

Related policies

Always open untrusted database files in Protected ViewAlways open untrusted text-based files in Protected ViewDo not open files from the internet zone in Protected ViewOpen files on local Intranet UNC in Protected ViewSet document behavior if file validation failsTurn off Protected View for attachments opened from Outlook