Policy Preventing Known Folder Move Prevents OneDrive Backups »Outlook 2019 and Outlook 365 Prompts for login when using Exchange Posted by tadosborn on Jun 21 2020 in General HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover Create a DWORD named ExcludeExplicitO365Endpoint Set value to 1 Restart Outlook No feedback yet Form is loading... This section can only be displayed by javascript enabled browsers.