This post details a change Microsoft is making to Internet Explorer 8’s first run experience, as part of commitment to user choice and control. IE’ll never install, or become default browser without explicit consent. Specifically, users who install IE8 and have another browser set as default’ll now see this panel as part of their first run experience:
Users with IE as default browser won’t see this screen. As part of this change, the “Use express settings” option no longer includes setting IE as the default browser. We decided to use dynamic updates in order to deliver this change to the market as quickly as possible, rather than re-release IE8 in over 60 languages. We expect to roll this out in mid-August. Over 90% of users who run IE8 setup opt-in to dynamic updates in this panel in setup. This change applies not only to IE8 installations on Vista and XP, but also when these users with a non-IE default browser install Windows 7, said IE blog.