You will never get any better at using the internet if you don't practice at it. Google is your friend.
Posting your email address in the open like that is an invitation for spam.
You need to know the make and model of your motherboard in order to get the best drivers for your HD sound.
If you don't know that information then download and use SIW from the link below to get it.
After that you go to the manufacturer's website and enter the model number. All the drivers for your motherboard and OS should then be available for download. I recommend you burn them to disk for future use.