@diverjer I did a hard drive search on the C:\ drive of my PC. There are many files labeled intuitupdate.exe for several years since I use this PC with TurboTax since around 2017. All the certificates show exactly the same thing as you have posted in your screenshots. I have no issues whatsoever with any of the TurboTax software I have downloaded and installed on this PC from 2017 to the present.
Suggest you do a complete uninstall of your TurboTax software. Using an App such as Revo Uninstaller which removes all files and associated system files when uninstalling software.
