Hi @serviceorder ,
Welcome to Trend Micro Online Community.
The error message could also be caused by file system errors or ownerships. Let's try to isolate the issue further.
Try disabling the antivirus temporarily and see if the issue persists.
To do that, search for "Trend Micro Diagnostic Tool Kit" app > Uninstall tab > Stop all components. You will know that the trend micro is no longer active once the system tray no longer displays the little Trend Micro icon.
Once confirmed, plug back in your USB drive and see if restriction persists.
Let us know how it goes.
To reactive the antivirus, simply launch the app once more or go back to the diagnostic tool kit > uninstall tab > start all components