Thanks for the suggestions, especially @TooBusyForThis . Just to say: on Windows 11 I downloaded the new VC runtime as suggested, but still no luck, whether I run as regular user or as Administrator. And I am using the latest TurboTax download as well.

It is very disappointing, that a major software company selling important software can't get their program to run on a standard Windows 11 laptop. 

Which web browser are you using? Did you try Microsoft Edge?

Hi Brenda, I am using the desktop application so I don't think Edge or Chrome has anything to do with this problem. The only thing I used a browser for was to download the installer.

@TomWaterloo Have you tried just moving your mouse over the blank screen to see if you can find the box to enter the code by seeing the mouse cursor change?

If your computer is using a VPN to connect to the internet, turn it off. Or, if you have a VPN available, turn it on.

If you are still not able to resolve this issue, please contact our phone support team at 1-888-829-8608.