Search for and download the appropriate drivers as per your device’s model and OS version.Simply, follow the below-mentioned steps to do it. You can download Realtek High Definition Audio drivers for Windows 7 through the official website. Method 4: Update Drivers Instantly via Bit Driver Updater Download & Update Realtek High Definition Audio Drivers for Windows 7īelow are the simplest methods that you need to download, install & update Realtek High Definition Audio drivers for Windows 7.