Please see the FAQ link provided below to run the update manually. After doing so, if the issue still persist, then I would suggest following the above message posted by KatrinaLO and reach out to TurboTax customer service for support:
Manually Update TurboTax for Windows Software (Basic, Deluxe, Premier, Home & Business)
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"