Using Windows 11 with default firewall and antivirus.

Temporarily disabled the firewall and added the whole TurboTax 2018 installation folder to windows defender exclusion list.

Deleted TTConfig.ini from the ProgramData folder.

Relaunched TurboTax 2018

Reentered the Installation keycode

Attempted to activate, same screens popped up directing to phone activation.

Thanks for the reply, still stuck on the activation.

@AntonS1 If you would like I can put in a call back request for someone to help you further with this issue. Would you prefer to be called back in the AM or the PM?

Early PM, thank you.

@AntonS1 I have made the request for someone to call you. They usually will call within 24 business hours, and their hours are 9 am to 6 pm (EST) Mon-Fri.

Unfortunately I was unable to answer my phone for the call back.

However I was able to resolve my activation issue today by calling customer support.

I was directed to a support link (updated three weeks ago, thanks!) 

https://turbotax.community.intuit.ca/turbotax-support/en-ca/help-article/install-products/trouble-li...

The tool in the support link for 2018 and earlier worked for me with a valid Installation Key I had with the original installation cd.

Great to hear that you were able to resolve your activation issue 🙂 

Thank you for choosing TurboTax