What is an Audio Endpoint? It is referring to the device that renders your sound just before it hits your speakers of headphones. This is your sound card. So, if you have just updated to Windows 10 or have done a fresh install you may need to install the latest drivers for you sound card.
If installing the drivers for your sound device doesn't fix the issue, it is also recommended looking for more Windows updates or running a scan on your system looking for errors.
There are many “Driver sites” that offer Audio Endpoint Drivers, but they are being deceptive! These are just null drivers (Drivers that don’t function)
The most common audio devices are:
Intel Audio Chipsets