I need to amend a tax return from 2021 and had to use TT 2021 to amend the return from that tax year. I started up TT 2021 on my newer, Win 11 computer and when it tried to do the obligatory update, the update failed (with a 1603 error). I even tried a manual update, but the super patch didn't work, either. Also worth noting: when I started up TT 2023 on my Win 11 computer, it also failed updates with the same 1603 error (even though TT 2023 went through the update process just fine a week ago).
I went back to my old Win 10 computer (which I used, 3 years ago, to file my taxes for 2021) and TT 2021 went through the update process just fine.
It makes me wonder if TT doesn't have some new problem updating on Win 11?
