Outlook.exe Lync.exe (and others) & nVidia GPU

So I have been noticing that for some reason, some Microsoft Office apps is starting to use my nVidia dGPU, even though I have set it to use integrated graphics using the nVidia Control Panel app.

I would see the following in my tray:

The only way for me to get rid of them is to disable my nVidia dGPU from device manager.

Until I stumbled onto this link:

http://www.slipstick.com/outlook/2013/outlook-2013-hangs-due-hardware-acceleration/

So I followed the article and turn off hardware graphics acceleration in Outlook 2016, and even without restarting Outlook, all the Microsoft Office apps stopped using the nVidia GPU:

So hopefully this helps someone :)