In the past i have downloaded TurboTax via disk and done my taxes on a computer. If i decide to use the TurboTax app or a different computer do i need to start from scratch? In other words is my pre

[DawnC]

If you move to the TurboTax Online edition, you can transfer in some information, see this article for the process to see if it would be a wise move for you.  

If you are going to continue to use the downloaded version on a new or different PC, all you need to do is save your previous years' tax data files (not PDFs) from the old computer so you can open them on the new computer.  

And your question appears to be cut-off so if you need more info, just ask here!