How to repair IDT Audio in Dell laptops

Apparently, Windows >8 IDT driver from Dell is a thing. Sometimes audio drivers stops working correctly, and one way to resolve this is to reinstall the IDT driver (with HD audio). But, you can always use a method that don’t involve restart of the computer:

1. Open the Device Manager (type devmgmt.msc in the search box and hit Enter).
2. Expand the “Sound, video & game controllers” and right click on “IDT High Definition Audio Codec”.
3. Select to “Update Driver Software”.
4. Click on “Browse my computer for driver software”.
5. Click “Let me pick from a list of drivers on my computer”.
6. Put a check in the box “Show compatible hardware” if not already checked.
7. In the list of devices, click “High Definition Audio” (the native driver).
8. Click “Next”.
9. On the Update Driver Warning box, click “Yes” (install the driver).