How to stop Laptop using integrated Graphics?

[Iamzod]

We have a laptop in the house that has an Nvidia 745M and Intel Integrated Graphics.

We want to use it to watch movies vie the TV & a HDMI cable however it seems to always use the integrated graphics unless playing a 3D game and playback is unwatchable due to how choppy it gets.

Anyone know of a workaround using Windows 10?

 

[Emlyn_Dewar]

What power mode is it on? It should be intelligent enough, it switch, but Low power mode will always use integrated.
Have you tried updating Nvidia drivers?

Dells have an option to disable Optimus, have you tried looking in BIOS for disabling switchable graphics.

 

[Hedge]

Nvidia control panel, 3d settings. Always use Dedicated Graphics .