I ran into something similar today after the latest update to the software was installed. I was going to enter a W-2 on a test tax return and the screen for entering a EIN for the employer never populated. So could not even get the screen for entering the employer information.
This is what I did to resolve the problem and it may or may not work for you.
Running Windows 10, version 21H1
Closed TurboTax.
Restarted computer
Right click on the TurboTax icon
Click on Properties
Click on the Compatibility tab
Check the box Run this program as an administrator
Click on Apply and then on OK
Start the TurboTax program
