Internet Explorer
You should select Block information on surfing habits through Alexa if you wish to deactivate the Alexa software, which is installed with Internet Explorer 6 and higher. This program sends information on your surfing habits to its manufacturer to facilitate the Show Related Links service.
When Disable integrated Windows authentication is selected, Internet Explorer no longer automatically tries to log into Internet sites using Windows authentication.
When Prevent check for updates is selected, Internet Explorer is prevented from making regular contact with the Microsoft server to collect information on possible updates.