Get your full Model number or Product number from the Service Tag attached to bottom of laptop(may be under battery)
Once you have the info, click the button at top of this page titled "Support", then click "Download drivers' from the menu. Enter your Product Number. After entering PN click 'Go". On the next page use the dropdown menu to select your Operating System . A list will populate with drivers/software.
Download & Save the latest Audio driver.Go into Control Panel,Programs & Features -Uninstall IDT software.Restart the laptop. After Windows loads, install IDT audio using the downloaded file.