From the actual blog @ https://blogs.windows.com/business/2016/08/11/updates-to-silicon-support-policy-for-windows/ https://blogs.windows.com/business/2016/08/1

From the actual blog @ https://blogs.windows.com/business/2016/08/11/updates-to-silicon-support-policy-for-windows/ https://blogs.windows.com/business/2016/08/11/updates-to-sil... "Windows 7 was designed nearly 10 years ago before any x86/x64 SOCs existed. For Windows 7 to run on any modern silicon, device drivers and firmware need to emulate Windows 7’s expectations for interrupt processing, bus support, and power states- which is challenging for WiFi, graphics, security, and more. As partners make customizations to legacy device drivers, services, and firmware settings, customers are likely to see regressions with Windows 7 ongoing servicing."