Using Turbotax Premier 2020. I just had the same issue of asking for the activation code even though I had activated and opened the program a dozen times without having it ask for the code. It turns out that one of the posts below mentioned having that issue when a flash drive is plugged in. Even though my flash drive has nothing to do with where I save my turbotax files, THAT WAS THE ISSUE! Very strange but at least it was an easy fix.
