Hey everyone,
I too had many overheating problems with my Toshiba P850 laptop with an i7. I found two ways to reduce the overheating, but not completely fix it. Hope these tips are helpful to you:
1) Update your graphics drivers: I currently have a geforce gt630m graphics card on my laptop, which really added to the overheating, but finally after a while toshiba released the windows 10 graphic driver for my nvidia geforce. This really helped, but my laptop still overheated.
2) Disable Intel Turboboost technology: Despite my graphic driver fix, I noticed something else in the task manager: the clock speed was extremely high, around 2.8 GHz on average. So I tried going to the BIOS settings and disabling Intel turboboost technology. And believe it or not, IT WORKED!
FYI: This is only applicable to Intel core i5 & higher (as far as I know).
After a few updates from windows overtime, I think my PC is not getting all that hot, but still noticeable, especially after switching from 8.1.
Hope this helps :amaze: