I'm sorry about the issue. What's the model of your computer?
Can you confirm it has windows 8 (or another windows version)?
Where did you get that Realtek audio program file?
Please reply at the box below. Thank you.
What did that company say?
What's the model of your windows 8 laptop? Please check at the back/bottom of it.
Can I connect remotely to your computer, so I can fix the audio issue directly on your computer together with you?