How long is a turbotax download usable (for re-install like a CD)

ONCE AGAIN, I WILL START OFF WITH IT BEING ALMOST IMPOSSIBLE TO TRY TO ASK A QUESTION TO THE WONDERFUL TURBOTAX COMMUNITY - WHY IS THAT SO HARD??

Yes, a Turbotax user (community also) for perhaps 20+ years (lost track) and I seem to have this problem of how to ask a question - and finally stumble onto it after 15-20 minutes of exhaustive searching.

ANYWAY, HERE IS THE QUESTION

 

I am a Turbotax CD guy, with CDs going back many, many years (even floppies I think).  I know the downloads are still available for re-download for 3 years . . . . . . BUT . . . . 

 

 if I save the download on a USB Drive, is the downloaded copy complete (i.e. like a CD) - like 5 years later, can I re-install Turbotax from that downloaded copy. 

[I.E. Is a downloaded Turbotax identical to the file you would get on a CD?]

 

And of course, another question is, how long will the automatic  Turbotax Updates from Intuit (Turbotax) be available (that nice feature of Turbotax being updated about every 2-3 times I load it). 

[And yes, I would have the same issue with re-installing Turbotax from a CD.]

 

OK, you may ask why I would want to reload Turbotax years later, but a couple of years ago, I did have to go back and submit 3 years of Amended returns.

 

SORRY - SORRY - SORRY  This always happens - when I try to ask a question and think about how to ask it - and I have pretty much have my answer - because I was able to do Amended Returns without any problems because I still had the updated versions of Turbotax left on my PC and did not have to re-install TT for the past several years.

 

So now, my real question is #2 above - and that is how long will Turbotax be supported (via a re-install) with the automatic updates every time I re-load Turbotax.

 

I think everyone will understand my question and concern here - even though question #1 above may turn out to be meaningless.  [Yes, it seems even CDs are going away.]

 

ron in shawnee