@ kmcdan1
Are you using Windows XP by any chance and referring to a 2015 data file? If so, are you seeing any message about Windows XP in the popup password box? 2015 Windows XP users were required to use password protection. if that's your circumstance, I'll explain that more and what to do.
And please confirm if you asking about a data file that was protected with 2016 TurboTax or with 2015 TurboTax.
