Http://www tomshardware com/forum/249947-28-realtek-audio-speakers

If you got the correct drivers for your system, just run the .exe file you downloaded. If it's a .zip file, extract it, and you should get a folder with the files, one of them would be named something like "setup.exe". Run that and it will install the drivers for the sound card.

Some driver packages extact the files when you run them, but don't install the drivers. If yours asked for a location to extract, check in the location it lists for a setup program.