How do you turn bad the built within microphone on a Toshiba laptop nonetheless bestow the external mic working?

Answer:

a moment ago plug in an external mic. it should automaticly disable the internal mic. Unless u are using a usb mic, afterwards u will need to goto yer audio properties and net the usb mic Default.
mute the mic in volume control its the little speaker down contained by the right hand side on desktop by the clock