I am having the same problem. I have TurboTax 2018, 2019 and 2020 all on the same computer. And none of them are loaded on any other computer, even though licensed to be.
I have completed and filed tax returns in each of those years' Turbo Tax systems on my computer.
I was working on an amended return from 2019, though, and when I went to launch the program again after exiting it days ago, it said to click the link to update, which I did.
After it finished updating it asked for my activation code and won't let me passed that screen.
I entered the activation code more than a year ago and have never had problem accessing it until now. But I can't find the activation code anywhere now.
When I paid for the software it had no expiration date and no warning that once activated it would require me to locate and reenter the activation code if I ever needed to file an amended return in the future.
And I frankly have never had this issue come up with ANY software I have ever purchased in my life, including tax software, and including tax software from H&R Block or from TurboTax. Is this the penalty for being dumb enough to be continuing customers and buying TurboTax's 2020 tax software is that we are now locked out of the 2019 TurboTax software that thinks we've got more than one software program and are somehow trying to circumvent licensing agreements or something???
Why can't I just launch the 2019 software that I paid for, loaded on my computer, already entered the activation code for and have used to file returns already that I'm just trying to relaunch?
And why does TurboTax want me to purchase other company's software instead in the future, apparently?
Any help would be appreciated. There is no way I am repurchasing Turbo Tax just to get a new activation code for the thing I already purchased!!!
