need to reinstall 2021
Login to your Intuit account. Once there you should be able to download any year you've purchased.
You can log into your Account dashboard here
https://proconnect.intuit.com/support/en-us/help-article/multi-factor-authentication/signing-account...
and chose Previous Years like you see here
You have clicked a link to a site outside of the ProConnect Community. By clicking "Continue", you will leave the Community and be taken to that site instead.
