You can't install or reinstall 2019 anymore. They only support the last 3 years and recently took off 2019 when they moved 2022 to the past year section. And 2019 was the first year they started using the License Code to activate the program so it has to log into Turbo Tax. You can't activate it now. It will fail. When did you buy or download 2019? Turbo Tax isn't selling it anymore.
2020 should install and work.
You can not do 2019 and prior using Turbo Tax. They only sell the last 3 years. You might want to go to a local accountant or tax place if you have a complicated return. And it is too late to get any refunds.
If you have a simple return you can fill out the forms by hand. Here are some basic forms…..
Here is the IRS 2019 Form 1040
https://www.irs.gov/pub/irs-prior/f1040--2019.pdf
or if you want bigger type use 1040SR for Seniors,
https://www.irs.gov/pub/irs-prior/f1040s--2019.pdf
And 2019 Instructions
https://www.irs.gov/pub/irs-prior/i1040gi--2019.pdf
2019 Tax and EIC Tables
https://www.irs.gov/pub/irs-prior/i1040tt--2019.pdf
Sch 1 : https://www.irs.gov/pub/irs-prior/f1040s1--2019.pdf
Sch 2 : https://www.irs.gov/pub/irs-prior/f1040s2--2019.pdf
Sch 3 : https://www.irs.gov/pub/irs-prior/f1040s3--2019.pdf
