Thank you for joining the Intel communities.
I'm sorry that it took me some time to come around to this post to try to help you.
Where do you uninstall the driver from, from device manage or from control panel?
You can follow the steps to uninstall the driver here:
From device manger you can disable it as well.
You can also uninstall it from control panel if it is listed there.
In this case, if you are using an Nvidia card and you have the monitor connected directly to the video card then the integrated graphics will not be active and you will be using only the graphics from Nvidia.