Hi ,
Well, there is this method, I don't know if it is working today, but it says that it works up to Windows 11, maybe that is a solution.
https://woshub.com/how-to-sign-an-unsigned-driver-for-windows-7-x64/
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
Give feedback if the information was useful or not.
Thanks