If you run Windows 7 or Windows 8.x on a system with a new processor architecture like the AMD Ryzen or Intel Kaby Lake, you will no longer be able to install the latest security updates. Instead, the operating system will serve a warning message that you're no longer entitled to support.
The solution is to upgrade to Windows 10 and fortunately there are still some loopholes to get Windows 10 for free.
Image source: ARS Technica