hey there @185000a … welcome aboard!
there are a few experts here who can provide better assistance that I can, but in the interim, have you take a look at a few articles like these?
http://www.tomshardware.com/answers/id-1914660/disable-laptop-dedicated-graphics-driver.html
http://www.tomsguide.com/forum/65356-35-disable-video-card
my partner in crime @geoffers747 had this suggestion, over on this thread:
I know with my laptop I can simply right click the desktop icon of the game and choose the graphics processor - you might need to use the humble version for this, not sure.