I'm sorry, but that would violate the End-User agreement.
However, you can re-download your product as many times as you like for up to 3 years after purchase. So should your computer crash, you'll have access to the download you purchased.
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.***