If Intuit is going to make software unavailable, it should be downloadable and savable at the time of purchase so that users can keep their own archives.
It is not possible to install any upgrade without downloading the software to your computer. After installing, it would be up to you to save the downloaded file somewhere. I don't know where that file is on a Windows computer but on a Mac it would be in the "Downloads" folder and can then be dragged and saved to any location you desire (or to a flash drive) for future use.
However, without updates that install file would probably be useless anyway and as VG pointed out, if there is a state then without also installing the state (no longer available) it is not possible to open the tax return even if you had the install file.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
