Hello Mr_ilkay,
Follow the steps below:
- Download and install the latest BIOS update: http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-124259-1&cc=us&dlc=en&lc=en&os=4132&product=5351114&sw_lang=
- Restart the computer.
- From Device Manager, uninstall the "IDT High Definition Audio Codec" and "Audio Device on High Definition Audio Bus"
- Don't restart the computer yet.
- Download and install the following driver: IDT High-Definition (HD) Audio Driver
- Restart the computer.
- Check if the issue is resolved.
Best regards,