All -
I believe I have found the solution. The issue is a hidden file that does not show up on the Finder. You need to find the hidden file in a Terminal session. Root of the issue is when Turbo tax crashes, it produces a file, and this file is preventing a new installation or new instance of TurboTax from starting. OK, on to the solution:
1. Open the Terminal app (using the magnifying glass at top right and type 'Terminal')
2. type: cd /User, now you are at the folder one-level above the user folder
3. type: find . -name "*Turbo*" (you need the "." here)
4. you will see lots of messages about 'operation not permitted', don't worry.
5. There should be line showing up as something like this: './<user>/Library/Caches/KSCrash/Turbotax'
6. This is the file that's causing the trouble. You need to delete the folder using the following:
7. type: cd
8. type: cd Library/Caches/KSCrash
9. type: rm -r TurboTax
That's it! You might need to do the uninstall and reinstall, but the root of the problem is this hidden crash folder.
You are welcome -:)
