Yes you can Transfer the 2021 tax file ending in .tax2021 into 2022 program. No problem there.
You only need the tax return data file ending in .tax2021 to transfer into 2022. You don't need to install older programs unless you need to amend or you didn't save the pdf file.
See this article on how to move your tax return to another computer…….
https://ttlc.intuit.com/community/tax-data-file/help/how-do-i-move-my-tax-data-file-to-another-compu...
After you get the program reinstalled the first thing to do before you open your tax return is to update the program and install any state programs you had. Then open your file. So you first might need to start a fake return to be able to download the state program (go to FILE - NEW). Enter some basic information, then go to the state tab and download the state program. Then try to open your existing return, go to FILE - OPEN
Are you still thinking about using the Online version? Here's some info
If you used the Desktop program last year here’s How to transfer into the Online version. You need to have the prior year .tax2021 file on your computer. Expand the link if you used the CD/download last year........
https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/transfer-last-y...
Or here’s How to switch and transfer from the Desktop program into the Online version........
https://ttlc.intuit.com/community/tax-topics/help/how-do-i-switch-from-turbotax-cd-download-to-turbo...
If you used the Desktop program before you may notice several differences and not like the online version. It has less features and no Forms Mode. The Online versions don't have all the same forms so you might have to upgrade to a higher Online version. You can only do 1 return. Your return is only saved online so be sure to save both the .tax2022 data file and the pdf file to your computer when you are done. In case you need to amend in the future or if you need a copy to get a loan or something. You might not be able to access your online return when you need a copy.
