If you have Windows, you already use Realtek sound drivers. You may need to check the sound card, as well. If you run into problems with this process, check for audio driver updates for your device.After you switch over from the default devices, go into advanced settings to ensure your headset microphone audio settings are correct.Do the same for your headset microphone device. Navigate to the audio device configuration panel, and set your connected headset as the output device.