Default M8 Drivers

Anyone know where I can grab the drivers. I am trying to use Carbon/Helium, and I need to install the drivers. I tried the generic HTC drivers, but control panel/device manager still shows Android Phone and CDC Serial with yellow exclamation points. I contact HTC tech support (what a joke) and the rep told me "The drivers are built into the phone" Uh, what the eff does that mean. The drivers I need are to install onto my computer, not on the phone.