All components will be removed from the PC if they are installed. Do the same for any of the other components that you may not require. Step 5: Locate SafeZone Browser and uncheck the box next to it. You find it listed next to update and repair. Step 4: On the page that opens, select change again. Alternatively, left-click on the Avast entry and pick change from the menu at the top. Step 3: Right-click on Avast Free Antivirus (your version may have a different name), and select the change option from the context menu. Step 2: Select 'Control Panel Home', and on the screen that opens 'uninstall a program'. Step 1: Hit Windows-Pause to open the Control Panel of the operating system. If the web browser is already installed on the system, then you can remove it from the Windows PC in the following way: While you are at it, uncheck any component that you don't require, e.g.Locate the Avast SafeZone Browser entry and uncheck it.The next page displays all the additional components that Avast will install on the computer.You find it below the big orange install button on the page. When the first setup page appears, hit the customize button right away.To block the installation of the web browser while you are installing Avast Antivirus on a machine, do the following: