After a year using an old Dell because I couldn't get my mac to work with Turbo Tax for the first time in several years, these instructions worked. I first started having problems during the 2019 process (halfway if you can believe that). I think it is important to mention that you should remove ALL prior year turbo tax files, not just 2019 or 2020. I started by removing those years files and the mac still would not work. But, finally removed all prior turbo tax (intuit) files and the software is now functioning! Fingers crossed I don't run into any other problems.
