Windows 7: internal mic

how do i turn off internal mic

Hi, nice to meet you.

You know diagnosing a problem or helping in a 'how to' is far easier if the poster gives information about the hardware etc; The question is a bit lacking in detail, what internal mic ?
The more informative you are the easier it is to help.

Hello, I guess you're using Windows 7 =)
On the taskbar, near the clock, you can see an icon with a speaker emitting sound waves on it, right click on this, recording devices and then, find the microphone that is integrated, then disable it.