@Dld1441 You don’t need to uninstall the previous year’s version of TurboTax CD/Download before installing this year’s version. Each year’s version is independent of the others, and you will need the 2020 version if you want to open your 2020 tax return files.
We don’t support TurboTax CD/Download installed on a MacOS computer (such as an iMac). If you are using software to allow Windows programs to run on your Mac, you would have to consult with the software documentation to see how to uninstall software.
This TurboTax FAQ tells you how to uninstall TurboTax CD/Download on a Windows computer: How do I uninstall TurboTax from my computer?
If you are using the US version of TurboTax please visit the website for TurboTax USA for support.
