You can download the current version of TurboTax Desktop edition here: Choose the current TurboTax Desktop edition you need (for Windows). You can download older versions of TurboTax Desktop edition here: Where can I download the Desktop edition of TurboTax?

If you are installing TurboTax Desktop 2024 again, then just sign in using the same account as you did when you installed it the first time. Your license should then be there for you to select.

This did not solve my issue as I was looking for the 2017 tax year. I found the disk and the key and was able to do what I needed to.