Just to add: I believe that error is associated the Apple "Gatekeeper" that prevents untrusted software from running. Be sure that you have not renamed the downloaded file or are instilling in other than the Applications Folder. Re-download a fresh copy of the .dmg file before re-installing. I assume that you purchased direct from TurboTax - bootleg copies from scam websites can fail - or worse.
**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.**
