Always Back up the Registry before making changes.
This report details the significance, locations, and procedures for managing Microsoft Word registry keys, specifically focusing on the ms-word: protocol and general application settings. Ms Word Registry Key
To safely modify or create these keys, follow these steps provided by Microsoft Support : Exit all Office applications. Always Back up the Registry before making changes
Open the Registry Editor (type regedit in the Windows Search box). Navigation: Browse to the subkey listed above. select New > String Value
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Common\Security\Trusted Protocols\All Applications Version-Specific Variations: Office 2013: Change 16.0 to 15.0 Office 2010: Change 16.0 to 14.0 3. Operational Procedure: Modifying Word Keys
Right-click the All Applications folder, select New > String Value , and name it ms-word: . 4. Risk Assessment and Safety