The 2017 program will ONLY transfer in the 2016 tax file so that is the only needed file.
Old programming can't be transferred.... They have to be installed from the CD
or Download. You don't need to install the prior year programs
unless you need to amend that year. Before you move your tax return
files make sure you have saved each year as a PDF file. So you may
want to open each year and do that. FILE - SAVE TO PDF
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. Then 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. Those can always be at least read by
any system, even if they can't be used directly by the program.
Especially....if you are
upgrading to Windows 10....there is no guarantee that any of the 2014...or
prior year tax programs will run at all on W-10. That has yet to be
determined...
Save the PDF for each year
twice.
1) Once as the tax return
for filing (this contains just the filing tax forms)
2) Again as the tax return,
but with ALL the forms and worksheets (this contains all of your
worksheets and shows all of your entries on some form or another).
The selection of the bare tax
return, or the extended tax return with everything is made during the
Save-to-PDF process.
And back those PDFs up to a
backup USB or CD....every year we get tons of folks begging for access to a tax
return on a crashed disk....TTX doesn't have it...only you do when you use the
desktop software.
See this
TurboTax support FAQ concerning moving tax files to a new computer - https://ttlc.intuit.com/questions/1901474-how-do-i-move-my-tax-data-file-to-another-computer
