You got laptop and don't know what is it? Okay, let me explain. It have on CPU integrated GPU crap, when using wrapper it activating by default. When using injector, NVidia card is used. Why? Because of NVidia Optimus programmers who too much lazy to make wrappers compatible. Why it crashing, not ask me, some users plays entire day, some similar to you, just uninstall all games by Bethesda and be happy.
Core i5-4690K 3.5 GHz, 16 Gb ram, GeForce 650 Ti 2 Gb, X-Fi Xtreme Music, WinXP/Win7