Remove Annoying 'A network cable is unplugged' icon from tray

On Start Menu click on Run, Now type regedit.exe and click OK.

1.>First Go to:

HKEY_CLASSES_ROOT\CLSID\

2.>You Will Find Key

{7007ACCF-3202-11D1-AAD2-00805FC1270E}

Just Delete it

Restart Your Pc. I Have not Found Any Problem from this till now.

Note:

Make a backup of the key just in case (select the key and click on File>Export,and save as name you desire.