I had same problem for over 2 hours today (Black Friday) while trying to start TTax 2025 Deluxe (Federal & state) installation after download from Amazon on my brand new Windows 11 25H2 Home PC. I got a Registration code in Amazon email.
However, when I requested a validation code via email to start installation -> No email. Tried again for email V-Code, -> Nada, multiple tries, never got an email code. Finally succeeded to get V-code via text on 3rd request, then install went smoothly. I didn't have any C++ or other dependency problems that others have reported in other threads.
Maybe Intuit verification code emailer was overloaded at the time? Dunno.
