And more than one in six of W 11 users are using unpatched W 11 23H2 as their core-2-duo cpu does not support SSE4.2Looking at the numbers, it’s easy to see why Windows 11 now dominates. It accounts for 78.8% of Windows devices, up sharply since the support deadline pushed much of the fleet to migrate. Windows 10 still sits at 16.9%, which may not sound huge at first, but it means roughly one in every six PCs is still running the older OS.


