The problem you describe cropped up last year for some people. A link was posted in this forum which you might want to try. The link connects to TurboTax Support and describes a manual update process which seems straightforward. I did not use this process as my update went smoothly. If it doesn't work or you don't want to try it your option is to contact TurboTax support. Good luck and let us know how it goes.
Here's the link:
Manually Update TurboTax for Windows Software (intuit.com)
