Same issue (Win 10 1909) - I get as far as the desktop link, which checks for latest update and then shuts down. I've tried reinstalling & downloading MS VC++ 2015-2019. No joy to date ...

We are sorry for the inconvenience. We are happy to report that the root cause of the problem has been corrected. Once you uninstall TurboTax and reinstall using this link, the issue will be resolved.
https://turbotax.community.intuit.ca/community/product-information/help/where-can-i-download-the-cd-... 

Thank you for your patience.

Hello,

I have the same issue. Purchased the Premier Edition @ Costco.

Followed the link and (re)downloded the installation file multiple times: app launches, file extraction proceeds, then nothing happens.

Please advise.

(Win 10 Home, 1909, build [social security number removed])

In order to help you with this situation, we believe your best option is to contact our telephone support team for further assistance, as they have the option to view your screen to help resolve the issue. To contact us please follow this link: Contact Us form. Once you go through the steps and complete the form, the phone number to speak to a TurboTax agent will appear on the page. If the agent cannot resolve your issue please make sure you tell them you want to escalate the issue to a higher level.

Thank you for your patience.