Conflicting drivers  

I have an ATI card that picks installing High Definition Audio controller, and its conflicting with my realtek drivers, this makes the graphics card go to 99% activity driving its temps way up. I was wondering if there is a way that I can prevent windows from automatically installing this drivers when I turn on the computer after I uninstall them with device manager.
Yes, I have tried the method in which you change device installation settings, but they keep installing.

You can update the whole Catalyst -- it will update your drivers as well.

Now, if you are sure you don't want Windows to install drivers, just go offline until you install what you want; or run Windows in Safe Mode.

How would I go about disabling the hdmi output? and the problem with installing and unistalling the driver is that it appears regardless of what I it just reinstalls itself.