The content of the security options portion of the MySQL Server Instance Configuration Wizard will depend on whether this is a new installation, or modifying an existing installation.
Setting the root password for a new installation
            It is strongly recommended that you set a
            root password for your MySQL
            server, and the MySQL Server Instance Config
            Wizard requires by default that you do so. If you do not
            wish to set a root password, uncheck the
            box next to the Modify Security
            Settings option.
          

            To set the root password, enter the
            desired password into both the New root
            password and
            Confirm boxes.
          
Setting the root password for an existing installation
            If you are modifying the configuration of an existing
            configuration, or you are installing an upgrade and the
            MySQL Server Instance Configuration Wizard has detected an
            existing MySQL system, then you must enter the existing
            password for root before changing the
            configuration information.
          

            If you want to change the current root
            password, enter the desired new password into both the
            New root password and
            Confirm boxes.
          
        To allow root logins from across the network,
        check the box next to the Enable root access from
        remote machines option. This decreases the
        security of your root account.
      
To create an anonymous user account, check the box next to the Create An Anonymous Account option. Creating an anonymous account can decrease server security and cause login and permission difficulties. For this reason, it is not recommended.

