I've gotten a new desktop form Ibuypower, I instaled everything that came with the package and everything else was fine except for the sound. I installed everest, which can detect the driver but it doesn't show for the sound. What can i do to fix the problem, or where can i find the driver needed for my sound harddive? And where can I download it?

Now I found out the Driver, it's Realek 3.68, but after downloading the same file from many different sources and installing it few times, it always stop at 80%, it never completes the installation. Also, the computer crashes and freezes after that point. What can i do to resolve the problem and get it fully installed correctly?