ARDUINO MEAG INTERFACING WITH PC

HELLO
I faced a problem when I want to interface arduino mega with my PC ,
I connect the arduino with my PC and LEDs(of arduino) turn but I can not see the arduino icon from front panel until I select the property that allows me to see hidden devices !

it's port is com11 but it's not an available choice when I want to select the port!

if any one know How I can to solve this problem please help me .

It's sounds like you expecting Arduino to be plug and play. What code do you have running on the Arduino, if any? You can interface with Arduino using the serial monitor facility included in the IDE, or you can use a proper terminal, like RealTerm. having the LEDs turn on may mean nothing more than that the power is connected.