My one computer continually needs to be activated anywhere from 1 day to 6 days. Last Thursday, it was on the last leg of the sceduled scan and it changed from Premium to Free! Only Premium allows scheduled scans so it was Premium when the scan started.
When you click activate, you will eventually get to the dashboard. To prove it is you, a code is sent to an email address. Keep the tab with the dashboard open. You will probably see 0 of 1 license available. You click on Manage devices and I see that my program has been activated 3 times on May 5th. It isn't always 3 times on May 5th but lots of times that is what shows. You clear that then you will be able to activate and be set with your Premium program again.