No Audio Device?

I have no idea what to do, but you guys seem like a smart bunch.
I recently formatted and now my computer detects no audio devices. When I'm trying to install the "Multimedia Audio Controller" it requests a cd or a file. I don't have the CD (I don't even know wehich CD it would be) and I have no idea what file I require (or where I'd get it)?
My providing informatio about my computer, could one of you potentially identify the file I need?
If so, what information would you need?

Hello Matt, welcome to WinDrivers.

A simple way to get the information we need is to download the free Everest program and post a copy of the system details in the information file it produces. (Remove any personal information it may include)

Alternatively, if your system is a standard model from a name brand, eg Compaq/HP, IBM etc, the full Model Number of the system may be all we need.