30 days test license disables ATI 2016
Good marketing gag: I tried installing a 30 days test license of ATI 2017. It upgrades my existing 2016 installation, and than asks for a serial rather thank starting a 30 days test period. My old 2016 serial is invalid of course. Net effect: Uninstall completely, re-install ATI 2016, re-create all settings.
Not a good way to keep existing customers happy.