You did import both certificates - one from Nvidia and the other one from Microsoft? Yes?
Both are needed.
I only looked at the setup.exe's certificates and never looked at the properties of the Installer itself for both certificates - your Window's could be missing the Microsoft certificate. Deleted the whole thing (files and folder) after posting, so I can't check it any more to verify if there are two certificates inside the Installer itself.
Edited by 0lds0d, 01 March 2024 - 09:15 AM.