I did a clean install to beigin with when I got the laptop, also my laptop only has 1 GPU, it don't have a Intel HD card, so setting make sins use only the Nvidia GPU isn't possible as that's the only card in my laptop and s already using it.
Also The only way making SINS use the Nvidia card in Control panel is through 3d application as far as i can tell, even then I can't see any option to USE exclusivly the NVidia card.
Also I did do a clean reinstall 2 days ago with updateed drivers before i Installed Sinsthrough steam.