Although I hate it, I will uninstall with Revo and reinstall in order to see if the Files feature can work.
If a fresh install is necessary, to use a new feature the developer should say so. It would be less frustrating than the eternal cycle: upgrade, try, does not work, try again, does not work, upgrade again, try, does not work, start or contribute to a thread here, lof of, log in, try, does not work... I mean, they must know about it, no?