A developer and reverse engineer by the name of “Zeffy” seems to have found a way around Microsoft's ban on updates for old versions of Windows on shiny new Ryzen and Kaby Lake CPUs.
Microsoft flagged its new policy early last year, telling the users that Windows 10 will be the only supported Windows platform on Intel’s upcoming 7th Gen Intel Core (Kaby Lake) based CPUs. The policy effected bady to the business oriented users who had a good reason to run old Windows on new PCs.
Microsoft eventually changed the policy so that people who are running Windows 7 or 8.x will still get security updates until those OSes reach end-of-life, but won't get other fixes. Zeffy, who on his GitHub page describes the policy as just Microsoft's way of telling everyone who'd rather keep using Windows 7 or 8.1 on their Intel Kaby Lake or AMD Ryzen systems and not be eligible for future updates other than security bug fixes. His solution targets the new CPU-detection bits that Windows has added to help Windows Update know when not to ship new code.