Laptop Using Audacity Help

My laptop has a built-in microphone, so whenever I use audacity I can only record audio off of that as opposed to also having the option of recording off of what's going on on the laptop (i.e. YouTube videos, etc.). Anyway I could somehow disable the mic or allow my laptop to record without the mic?

 

You can record audio w/o a mic?

 

It is being set by one of the programs that you run. You will have to resort to the process of elimination to find out which one. You can begin the process by not starting any program that uses the microphone.

Also,That's by Windows design - otherwise you would be hearing what the mic picks up all the time, if it's plugged in and the volume is high enough. It's supposed to be muted by default in the main mixer in Windows, and when you use a program that can use a mic, it's supposed to be automatically un-muted while using the program.
If the program that is supposed to un-mute it automatically is poorly written or if it isn't installed properly, that may not work properly.
And obviously you must have your sound drivers installed properly.