Before installing Internet Explorer 7 Beta 2, any previous old version of Internet Explorer 7 Beta 2 Preview must be uninstalled by using Add/Remove Program in Control Panel (if it doesn’t show up, click on Show Updates on the top). If you are having problem during installation of IE7, IE7 Beta 2 release notes contains several solutions to common errors such as installation failed, setup unable to open log file for writing, reinstalling IE 7 Beta 2, uninstall IE7 Beta 2, hangs during uninstall Internet Explorer 7, removing Internet Explorer 6 updates and other common issues.
IE7 includes new security features designed to combat phishing attacks, spyware and other threats, allows users to clear their browsing history, passwords, form data and cookies in a single click. Other new features include tabbed browsing, an enhanced search box, new printing features and a built-in RSS feed reader.
Microsoft has also launched a new Internet Explorer add-ons site (now part of Internet Explorer Gallery), offering hundreds of extras, add-ons and plug-ins to extend the web browser’s capabilities.
Update: IE7 RC