Shoutbox

Still try finding reinstalling the drivers. Reinstalling has a habit of fixing these kinds of problems cleanly.

If you are still reluctant to do that you could try this, your computer may automatically make check-points which allow this, if not it won't work;

Start > Help & Support > Undo Changes to your computer using system restore > Restore my computer to an earlier time > And pick a date before the problem started and go from there.
I don't like the second option, because it will undo setting changes for the last few days. But your personal documents will remain safe.

I'd try reinstalling sound card drivers before resorting to this

I decided to use a system restore since I hadn't made any harsh changes to my pc. It worked and my audio is now fully working. Thank you Anubis and Scone for your help I appreciate it.

S'alrite glad you worked it out without much trouble
Edit: Although Anubis was the one that really helped

Glad I could help

well as i'm a dj i work with pro soundcards and stuff, i guess i would got out if i got some time on your computer. Anyway  audio works with a driver, windows, asio, kernel, whatever, you just decide which one you like te most. Make sure you got one of these, in circumstances these can be removed accidently... Also, you have much more faders than just those of your windows mixer that opens with a click on the litte speaker. Rightclick and select properties may open a new window, and you'll get to new faders defenately. Some programs mute sound automaticly, if you don't shut off right or the program crashes you'll stick with it... big chance it was just a setting..

But hey you got out, system restored are handy! but you can keep it in mind.