The Standalone Scanning Tool mode uses the Scanning Tool as a standalone device, wherein you can use any endpoint that has Internet connection to update the components, change scan settings, or check the logs.
This setting is for those who want to use the Scanning Tool without having to go to the Management Program for updates or changes to the settings. With this mode, you can make any changes to the Scanning Tool settings from the Scanning Tool console.
Note:
Trend Micro recommends regularly updating the components before scanning any device to make sure that the latest threats can be fixed and quarantined.