Lost Multimedia audio control , and I do not have a system restore point I can go back to, so what else can I do to get it. I have an Optiplex 260, I know its old, but... I downloaded Driver Boost to get the required drivers , etc. I needed, but for every one I need, it says insert CD, I don't have a XP system CD I'm supposed to sell this CPU, I deleted all my personal programs and accidentally things I shouldn't of. Can you help me, PLEEEAze.
I have been trying to fix this for 3 days now, and NOTHING I've done WORKs
At the end of my rope, next step?

Head over to Dell's site, enter the tag information and you will be presented with all the needed drivers.
Here's a link for you: Drivers and Downloads | Dell [United States] (http://www.dell.com/support/drivers/us/en/19/DriversHome/NeedProductSelection)