If the Internal microphone not showing up or missing from the Device Manager, then this post is sure to help you fix the problem ... Update the Audio driver Run the Recording Audio troubleshooters ...

It's incredible how much a simple restart can fix ... the Audio inputs and outputs category, double-click the device to see what the problem is. Update your device drivers. An out-of-date driver ...

In this guide, we have listed down all the known issues for Assassin’s Creed Shadows and their possible workarounds.