Windows only:
Install (make sure you are installing as an administrator) .
....don't start the program after installation....instead, download and install the Manual Update. then try to start the program again.
https://ttlc.intuit.com/community/updating/help/manually-update-turbotax-for-windows-software-basic-...
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
