You should be able to re-download your purchased software for up to 3 years from the time of purchase. See the TurboTax FAQ I'm linking below to find instructions for downloading your software.
How do I download the software I purchased at TurboTax.com?
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***