How to Adjust the Master Volume in Windows 7

The master volume of the computer affects all sound devices currently running in the system. For Windows 7, adjusting the master volume or system volume is very simple. Click the 'Start' button or the circle button with the Microsoft logo...

Method 1 of 2:

Click the "Start" button or the circle button with the Microsoft logo on it. Usually found on the lower right of your screen.
Click the "Control Panel" button in the selection on the right.
Click "Hardware and Sound".
From the list, click "Adjust system volume" under "Sound".
Adjust the volume to desired level.

Method 2 of 2:

Click the button that looks like a speaker. If you can't find the speaker button, try pressing the triangular button on the left. This will bring up more icons.
Click the "mixer" button below it.
Adjust the volume to desired level.