What is on the link exactly? Don't want to be clicking on potentially dangerous websites. How will it fix my problem? The address doesn't indicate anything to me so I'm being a bit cautious.

I've built a new PC (i5 6600k, GTX 970, 16 GB DDR4 RAM) that's cost me a lot of money only for it to have to have loads of sound cracking whilst gaming.
I've already had someone else on another...