unless you're using HD sound output (through either HDMI, optical, or coax) the sound will be analog output. dont try and change it. there should be a option to change it back, if not you have two options
1. uninstall and reinstall sound drivers (99.99% should work)
2. system restore (MIGHT work)
so its realtek hd obviously (its very common) but you need to find the exact model number, check Device Manager (run-> devmgmt.msc)
Thanks That Helped Alot! And If A Mishap Like This Happens Again I'll Remeber To Come Back To This Useful Resource . Again Thanks Both Of Ya'll For The Help !