To Stop Noise in Avira, you have to Double-click the red umbrella icon in the Windows taskbar to launch Avira. If you don't see the umbrella icon, you need to click the up arrow icon to reveal it. After that, open the "Extras" menu and Click "Configuration." You must check the box next to "Expert." Then, Click the "+" sign next to "General" to expand Avira's general options. You should click on "Acoustic Alerts." Next, click the radio button next to "No warning." You can click "OK" to apply the changes and Close the Avira window.