Double-click on Sound, video and game controllers to expand that section.Press the Windows key + X shortcut to open the WinX menu, and then select Device Manager.Method 1: Turn On Windows 10 Microphone Using Device Manager Microphone doesn’t work after Windows 10 upgrade? How can I re-enable the built-in microphone? In this tutorial we’ll show you 3 ways to enable / turn on microphone in Windows 10.