In Windows 10 control panel, right-click the speakers button in the lower right corner of the screen (by default, this is the location, but you can also move the panel or hide it)
2. Click "Open Sound Settings"
3. In the appearing window, click on the device properties (microphone) as shown in the image below.
4. In the properties, select the Levels tab.
5. Looking at the volume levels, make sure that you have everything set up as in the picture below.
Microphone is on and volume level is set for maximum
6. Save changes
7. Go to the conference and refresh the page
8. Turn on the microphone