notice : how to install a microphone
 
1) plug the micro in the MIC hole
2) double-click on the speaker in the right lower corner of the desktop
 
Now you are in the window "Volume Control" !
 
3) go to "Options/Properties"
4) select "Recording"
5) check that the checkbox 'microphone' is checked
6) click "OK"
 
Now you are in the window "Recording Control" !
 
In the column Microphone,
7) shift the bar to the maximum (upwards)
8) check the box "select"
9) go into "Options" and check the box "advanced controls"
10) click on button "Advanced" under the microphone
11) check box "Mic Boost"
12) go to "Options/Properties"
13) select "Listening"
14) click "OK"
15) close all, it's done.