if you used CDs and no longer have them you are probably out of lick. If you downloaded them you may be able to go back to that site and redownload them. There should be no issue if the download was from Turbotax. Don't bother with years before 2020. Updates are no longer for them so reinstalling and opening the data file will likely change the return from what was actually filed. if you need copies of returns and can't reinstall the program file see this site, which for a fee, can email you printouts of returns when you email them the data file.
https://www.taxprinter.com/
