Notification area icons locked

[gamesms]

Hello, I recently discovered when I wanted to make volume manager appear.. That is locked and cannot turn it on or off.. Here the picture will let you know more..

Thanks in advance for your help

 

[Bobbye]

Click on Start> Settings> Sounds & Audio Devices> Audio tab> Make sure there is input for sound in/sound out. Make sure Mute isn't enabled.

To adjust the Volume Right click on the Volume icon> Select Open Volume Control.-

If this doesn't resolve the problem, please give me more information:

Are you getting any sound at all?
Is the Volume icon showing in the Notification Area? If not> open Notification area> Customize> Set the volume icon to Always Show.
If you do the right click on the icon and select 'open volume control', what happens? Error Message?