The manual process to sign a driver with test certificate is not simple. But there is a tool, by ngohq.com, named Driver Signature Enforcement Overrider (DSEO) that can automate the process to digitally sign a unsigned driver with a test certificate.
Comments:
We hate the signed driver protection racket Microsoft foisted upon he public in the 64 bit OS. This is no secret. The standard options mentioned in the article have not worked for me. I have yet to try DSEO but plan to the next time I have the two goons show up asking for money.