I have an identical situation to hnshipman-01
I even did system restore to before installing TurboTax, did a clean install, and now the clean version is stuck like the last. The updater does not work, returns Microsoft error 1603, and the program does not open. I had used the program and entered all my data, except the details of my wife's drivers license before I e-filed. I was literally 3 minutes away from e-filing, and now I can't open the program. I spent hours the other day entering all that data in the program. This really sucks. Just this year I gave a glowing review on Amazon for this product because I have used it for years. Wow, bruh. Never had to turn off antivirus before. But I did that and it didn't help. Even this year (2020) the updater worked already other days.
