
In Device Manager, expand Sound, video and game controllers, right-click on your sound card, and click Uninstall.On your keyboard, press the Windows logo key and X (at the same time) to invoke the quick-access menu.

The simplest way to check if this is what has happened is to uninstall your audio driver: (This quite often happens after an upgrade to Windows 10 from an earlier version of Windows.) If your sound driver has somehow been removed, corrupted or become incompatible with Windows 10, you won’t be able to hear any sound from your speakers.

To do this, click Speakers then Properties. If your Speakers are set as the default playback device, and you’re still not hearing any sound, you should experiment with different sound formats. To fix, just click them, click Set Default, then click OK and test whether you have sound. If your Speakers are NOT already set as the default, this is doubtless your problem. This indicates that your speakers are the default playback device.

If you don’t hear sound from your external audio devices, like speakers and headphones, you can check if their cable is broken.

Just start at the top of the list and work your way down. You don’t necessarily have to try them all. More importantly, it’s usually a pretty easy problem to resolve. So if you’re experiencing this problem, rest assured, you’re not alone. Particularly immediately after upgrading from a previous version of Windows. One of the most common problems with Windows 10 is no sound.
