So, my NVIDIA Optimus machine was working completely fine on Windows 7, but once I upgraded to Windows 10 my games crash. But games only crash when using the GT 420M. When I force a game to use my Intel HD Graphics, games start and play fine.

When I say crash, I mean that I click a shortcut (or the .exe itself), and a black screen comes up like it's gonna start, but then it stops and says "***** has stopped working". So if I run Skyrim, it says "Skyrim has stopped working".  Buy Online In Pakistan