@Mel Indy I know it is frustrating as I just ran into the same issue. I needed to edit my 2021 taxes and wanted to view my 2019 return in TurboTax, but got locked out like you did. Have you tried KRWTX's 12 steps to override the activation on page 2 of this topic? It worked like a charm for me. I did the same thing to my 2020 copy as well, as I was running into the same issue there. Its like a 5 minute process and you only have to do it once, and going forward it should always work like it has in the past. I agree that Intuit should change their practices going forward, but I highly doubt they are going to change 2019, so you'll have to edit it yourself. It sounds intimidating if you've never coded before, but it is actually straight forward. What is the worst that can happen, you brick some software you already don't have access to? Even then you could just reinstall it if you still have the CD.
The only thing you have to look out for, is that if you use the 12 steps that KRWTX mentions, during step 12 you need to disable your internet before you open TurboTax for the first time after editing it, and then turn off automatic updates. It doesn't state that in the original 12 steps, but someone else commented on it further down on page 2 of this topic. Once you disable the automatic updates, you can turn your internet on again and it will function just like all the 2018 and earlier copies of TurboTax have in the past. Hopefully going forward they will see how many people are annoyed at this and they won't do the same thing for future years. Depending on circumstances, the IRS can go back up to 10 years to review your taxes, so disabling access after 3 just seems stupid.
