Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
Not quite sure how this happened but I suddenly lost all of my sound on my PC. After checking the basics like the physical headphone socket connection (which was ok) I thought I’d maybe inadvertently muted the sound within Vista. Looking for the sound icon in the bottom right hand side of the screen I saw that it was missing…. Strange.
So to get the missing sound icon back again I performed the following steps.
1. Right mouse click the Start Orb/Button on the bottom left hand side of the screen and select ‘Properties’, ie: 
2. Next, select the ‘Notification Area’ tab and check/tick the ‘Volume’ option under the ‘System icons’ section. As you can see this area can also be used to enabled/disable the ‘Clock’, ‘Network’ and ‘Power’ (laptops) icons.
I then saw the Volume icon again which allowed me to un-mute (not sure why it suddenly muted itself in the first place) the sound to my headphones.
Quite a basic little problem but thought it worthy of a quick posting in case others also experience this issue.
But the volume, u cant cross it, it is like the power on the picture, you cant click there.. i dont know what to do, help me ..
Hi Daro,
It sounds like the problem is due to one of two things:
1. Windows 7 hasn’t correctly detected your sound card. To check this go to Device Manager. If this is the case then goto the manufacturer of your system board (if it is an onboard sound chip) or the sound card and see if they have released a Windows 7 compatible driver.
2. You have a group policy in place that is preventing you from enabling the sound on your PC/laptop.
Hope this helps.
Cheers
Simon