WordPress 3.1 introduces a new feature called the Admin bar. A lot of people will be wanting to disable this when WordPress 3.1 comes out.
But since some people might want to disable the admin bar for everyone, I
thought I'd show you a ways to quickly disable the WordPress
1. Login in admin page then click on All Users under user box
2. Edit all user that you want to disable then Un-Check on "When view site"