Why did you have to reinstall the programs? I recently upgraded my computer to Windows 11 from 10 and all my programs stayed installed. I just now tried opening 2019 and it opened ok without needing the code.
But if you have to reinstall the programs......
Sorry you will never be able to activate the 2019 program with the License Code. The License Code started in 2019. So 2019 needs to connect to Turbo Tax to verify the License Code. They only support the last 3 years and have stopped supporting 2020 and prior. And you won't be able to download any updates or any state programs you might need. And you will need to download the state program to open the file.
And for prior years....You can try to install2018 or prior but you won't be able to update or download any state program you will need. And you will need to download the state program to open the file (if it has a state return in it).
