If you click the Windows Volume Control and it does nothing, do this:
1.Click Start, type regedit in the Start Search box, and then press ENTER. If you are prompted for an administrator password or for confirmation, type the password, or click Allow.
2.Locate and then click the following registry subkey: HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify
3.In the Details pane, click the IconStreams registry entry.
4.On the Edit menu, click Delete, and then click Yes.
5.In the Details pane, click the PastIconsStream registry entry.
6.On the Edit menu, click Delete, and then click Yes.
7.Exit Registry Editor.
8.Either restart the computer or the Explorer.exe process.
Or, run these
reg delete “HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify” /v IconStreams /f
reg delete “HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify” /v PastIconStream /f