I have a Toshiba laptop with Windows 8.. The volume icon is missing from the bottom right corner and I am unable to restore it. I have gone into start menu and found the page which you can turn the icons on/off, however I am unable to click the volume icon on/off. I am also unable to click on the 'restore default icons' button. My laptop has no sound and I don't know what to do. Do you have any suggestions?