I have upgraded to windows 10 on my gaming laptop which has these: Intel HD Graphics 4000 with nVidia 660m GTX
Sometimes, system suddenly calls for nvidia to kick in for some situation (maybe browser demands it, sometimes Metro GUI demans it) and when it happens system hangs for a second.
It always happens when graphic adapters switches to each other.
I think this is related to the current drivers because I remember when I've first upgraded to 8.1, this happened again. Intel released a driver and it's fixed.
So I'm reporting this here.
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