How do I turn off sounds?

To turn off all sounds
On the main screen, click the Speaker icon. 

When the Sound Options screen comes up, click the option Don’t use Boot Sentry Sounds.

Click the Disk icon on the toolbar to save.

Click the X icon to close the Sound Options screen

To turn off a specific sound
On the main screen, click the Speaker icon.

When the Sound Options screen comes up, find the sound you want to disable, and uncheck the Enabled box

Click the Disk icon on the toolbar to save.

Click the X icon to close the Sound Options screen