Disable GPU and limit CPU usage

[mike.anth99]

I wanna buy a laptop to replace my current PC (i5 6500, gtx 1050 2gb, 24gb ram). I have been looking and i really liked the acer helios 500 (i7 8750h 16gb ram, gtx 1070). It's quite heavy considering i will bring it to university with me, but the major dissapointment was the battery life. Is there a way to disable the gpu while i am at university so that it wont suck power and extend battery life and only use the gpu for gaming and video editing?
I will use the laptop for audio editing in fl studio, video editing in davinci resolve, basic stuff like office and web browsing and of course, programming and web developement. I know its a bit overkill but i want to keep this laptop for all my 4 years of university.
Also, this is a 6 core cpu. When I'm at university i will mostly use it to take notes and do some light programming. Can i also disable some cpu cores so it behaves as a quad or dual core to save some battery?

 

[dederedmi5plus]

you can do it from windows https://www.youtube.com/watch?v=djOiRrDDVgk

 

[mike.anth99]

And how about the gpu disable thing?

 

[TerryLaze]

And how about the gpu disable thing?

Laptops do this anyway,it will use the igpu for normal usage.
Don't disable cores though, modern CPUs use core parking(this is disabling cores,putting them into sleep mode) and all sorts of other power savings,nothing you do will make it any better.
Look at reviews to get a better idea of how long it will last while only doing simple stuff.