How to adjust the volume

You can adjust the system volume or sound volume when
playing music or video.
Using the keyboard to control volume
Press and hold the Fn key, then press the F7 key to decrease the
sound volume.
Press and hold the Fn key, then press the F8 key to increase the
sound volume.
Using the taskbar to control volume
Select and click on the Taskbar, then drag the adjustment
bar to your desired volume.
To set different volumes for different desktop programs
Right-click the taskbar’s speaker icon and choose Open Volume Mixer from the pop-up menu