Win10 even changed the requirements actually: https://www.osr.com/blog/2015/03/18/microsoft-signatures-required-km-drivers-windows-10/ https://www.osr.com/blog/

Win10 even changed the requirements actually: https://www.osr.com/blog/2015/03/18/microsoft-signatures-required-km-drivers-windows-10/ https://www.osr.com/blog/2015/03/18/microsoft-signatures-req... Personally, I think that signing all drivers off a single root makes sense, but I am concerned about the EV requirement. EricLaw mentioned before that they don't sell them to individuals, for example.