Windows 7 and 8.1 won't be updated for future processors, starting with Intel's Skylake platform
Soon, when you buy a new PC, it won't support Windows 7 or 8. Microsoft has announced a change to its support policy that lays out its plans for future updates to its older operating systems, and the new rules mean that future PC owners with next-generation Intel, AMD, and Qualcomm processors will need to use Windows 10.
It's not usual for old PCs to fall short of the minimum requirements of a brand new operating system, but in this case, the opposite is happening. Microsoft and its partners will not be putting in the significant work necessary to make new hardware work with older versions of Windows. The old operating systems, at best, will merely lack the latest updates. At worst, they might not function properly.
http://www.theverge.com/2016/1/16/10780876/microsoft-windows-support-policy-new-processors-skylake?newprocessorsonlysupportwindows10
