You don't enter the 16 digit License Code until after the program is installed. Then when it launches it will ask for the Code.
Do you have Windows 10? If you have Windows 10 and the CD won't load see
https://ttlc.intuit.com/community/bugs-and-error-messages/help/nothing-happens-when-i-insert-the-cd-...
Do other CDs work in the drive? If the CD doesn't work you can download the program instead.
How to download Turbo Tax instead of using the CD
https://ttlc.intuit.com/community/installing/help/i-bought-the-cd-but-my-computer-doesn-t-have-a-cd-...
There should be a card in the CD case that says how to download it and you will need the 14 or 16 digit code from it to enter.
