To get Dolby Advanced Audio working on your HP laptop running Windows 10, you generally need to download the official audio driver specifically tuned for your model from the HP Support website

: Under the "Driver-Audio" section, look for a driver that mentions IDT High-Definition (HD) Audio

Check your HP laptop’s model number right now (using the Ctrl + Alt + S hotkey on many HP devices). Visit the HP support site and search for "Dolby". Listen to a song on YouTube before and after installation. The difference will be night and day.

You followed the guide, but it still fails. Here are the top fixes for HP laptops on Windows 10.