Quote Originally Posted by RhinoBull View Post
I have never seen any installer from Microsoft that would automatically reboot your pc - there is always a confirmation dialog asking whether or not you wish to reboot it now or later.
Since the introduction of XP (at least) they would use taskbar notification area to notify user of pending tasks.
What OS do you use? Perhaps it's missing many updates or even SP...
I have seen auto reboots, for example in the case of a Vista service pack, but it warns you before you actually start the install process, and it may even give an opt out. Not sure about the IE installer since mine did not need to reboot at all during installation.