Ugh. If you used desktop software for last year's return, it was only stored on that hard drive. Returns prepared using downloaded software or from a CD are only on your own computer, or on a flash drive you used for back up, etc. They are not stored online with TurboTax. If you did not print a copy or back up the return, it is gone. You can get a transcript of the return from the IRS:
https://www.irs.gov/individuals/get-transcript-faqs
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
