Make sure your computer is the same way when you originally installed it. Like with no flash drives plugged in or plugged in if one was. Even a printer plugged in or not. It asked me to activate again so I just closed the program and took out a flash drive that was plugged in and tried again. It worked.
One user had his tax file on another drive and said….. I moved the tax file to C:\Users\myname\Documents\Turbotax and no longer get the activation.
FAQ Asks for Activation at every launch
https://ttlc.intuit.com/community/tax-topics/help/turbotax-2019-requests-license-activation-at-every...
