1. Perform a proper shutdown of the thin client by closing all files and ending your session, and then press the power button to turn off the thin client. 2. Unplug the power cord and power adapter, remove all of the cables from the rear of the thin client, and then detach any support feet.
To do this, you would normally have to right-click on your taskbar, but since that is missing, we have to go through the Control Panel and click on Taskbar and Navigation. That will open up the taskbar properties dialog box where you will want to go ahead and uncheck the Auto-hide the taskbar box. Just in case, you should also check to make sure the taskbar is located at the bottom of the screen.
In Windows, the volume control icon is like a digital volume knob. The task bar is a part of Window's operating systems and it is the bar typically located at the bottom of your screen. On the right side of the task bar is a group of icons, one of which should be your system's volume icon. This should be located right next to your computer's date and time, it will be a small icon shaped like a speaker. Sometimes, simply restarting your computer is enough to fix the problem.