Here's the answer ... Just need to delete ALL the files associated with Turbotax before re-installing it, and to do that, include system files in the Finder search you perform.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/remove-reinstall-turbot...
The moral of the story is, do NOT allow your machine to sleep while and update is being installed. I believe this is what caused the problem.
