The only way to switch to a free desktop program is to call in and ask. Maybe you were in a paid online version so they gave you the Desktop program which they can do.
Contact Customer Service
5am-5pm Pacific Time Monday -Friday
https://support.turbotax.intuit.com/contact/
What is the Turbo Tax phone number
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
