"But is your UEFI box *capable* of Secure Boot?"
Yes. It is a 4th gen i7 laptop, but due to alternate booting I've disabled Secure Boot for easier living.
"Legacy machines that don't even have a Secure Boot option might be what will eventually be no longer supported."
Oh, I'm sure that will happen one day. Or at least requiring UEFI boot.
Win8 already required certain processors instructions/features, and practically everything pre-AMD64 / Intel Core i series was not working. Those same CPU requirements stand today with Win10. Likely some CPU feature will be a requirement in the future, thus cutting out more hardware.
...Or requiring more RAM than older systems can be fitted with. Or removing legacy BIOS boot. Or dropping 32-bit support for those few % still using it.
Biting the hand that feeds IT
