What do you want to do? Move your 2020 return to the old computer? Or transfer from a 2019 return on the old computer?
Do you want to move your prior return to the new computer?
On the o,d computer..........What I would do is just copy the whole Turbo Tax folder that is under your Documents. That should be where the .tax files and pdf files are stored. Copy that folder to a flash drive or best yet is to burn it to a CD or DVD and then you will have a backup of them. Then on the new computer copy the folder (or files) from the flash drive to your Documents folder.
The programs need to be installed from the CD or download them again. You don't need to install them unless you need to amend or open a return.
