Did you originally install it on the first computer? How? With a CD?
There is a problem if you first installed the CD. It doesn't connect you to an account you can find. You have to call in and ask for the download and a new License Code. Hopefully you get a customer service person who know about it.
How to contact Turbo Tax
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-contact-turbotax/00/26991
What is the Turbo Tax phone number
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
