I have TurboTax 2021 and when opening the app, it's erroring when running the latest update. What do I do?

[SweetieJean]

What is the exact error message?

[Critter-3]

If you are using WIN 10 then uninstalled OS updates can hang up the TT program updates ... install the WIN updates at least 3 times and then reboot the computer.   Then try updating the TT program making sure you are using an administrator account, the program is installed on the C drive  and that you don't have any removable drives in the USB ports.  

If that does not work try a manual update:

• What is a manual update?
• Where's the manual update for Mac?