How to disable "igfxHK Module" process from starting up with Windows

I found igfxCUIService1.0.0.0 in autoruns, where CUI is common user interface. On a hunch, I disabled that. Hotkeys are now fine on reboot. So far I haven't noticed any negative consequences.

I had this issue on Windows 7. I was finally able to turn it off by setting the service Intel(R) HD Graphics Control Panel Service to Manual and restarting.

Right-click on desktop and select Graphics Properties. This should open up the Intel Control Panel, select Advanced if the option is offered.

In the Options and Support tab, at the top, is a check-box for enabling/disabling hot key functionality. Try that.