This is actually my first post right now.
Alright, i had a problem trying to Enable realtek audio from the Sound Hardware list from Control panel. After an hour of hunting and freaking out constantly, I found a solution that was looking at me in the face the whole time, I feel kinda stupid.
To Fix - Goto Start > Control Panel > Hardware and Sound > Sound > Right click anywhere in this screen > Show disabled devices > Left-click speakers > properties > Device Usage > Enable.
I couldnt help but posting this after seeing many other google searches realted to this problem.
Hope this helped.