Check if your microphone is selected as a recording device.

Open Control Panel and select Hardware and Sound. (To open Control Panel, see Opening Control Panel.)

Select Sound and check if there is a check mark on your desired microphone icon on the Recording tab.

If not, select the icon and Set Default.

If the icon is not displayed, make sure the microphone is properly connected to your VAIO computer.

An external microphone with a 3-pole mini plug does not work with the headset compatible headphone jack.

The microphone of your headset may not work with your VAIO computer. Use a Sony smartphone compatible headset.