You will not be able to reinstall TurboTax for 2019 or earlier because they are no longer supported. Updates and state programs are no longer available, and activation is no longer supported. New licenses are not available for purchase.
Before you wipe out your existing installation, save a PDF of the 2017, 2018, and 2019 tax returns. Select the option to include "Tax Return, all calculation worksheets."
TurboTax for 2020 will go off support shortly after this coming October 15, 2024.
