Download Realtek UAD Driver 6.0.9191.1 for Windows - Filehippo.com
Realtek HD Audio Drivers 6.0.9524.1 Download
Realtek AC 97 Driver Package (Version A3.45) : Realtek Semiconductor Corporation : Free Download, Borrow, and Streaming : Internet Archive
Audio is important in games, your Realtek driver / software is most likely outdated... motherboard manufacturers suck at updating it - Realtek UAD generic is the best way to stay up to