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    In the Windows 8 Blog, Microsoft has posted a blog about installing updates in Windows 8. 
    In the past, Windows Update or WU, has interrupted users to try to install updates to the computer.  For example, when watching a movie or playing a game, windows would show a dialog box asking to install updates in let's say ten minutes.  Of course this annoys many users leading to the Windows Team to fix the problems.  Now updates install in about a day or two.  Everytime someone logs on the computer a message near the bottom right appears telling how many days it will be before Windows will install the updates needed to keep the computer up to date.  It can also sence when playing games or watching full-screen videos making WU saving the message to update the next time.
    You can read more at:
http://blogs.msdn.com/b/b8/archive/2011/11/14/minimizing-restarts-after-automatic-updating-in-windows-update.aspx

Please comment and discuss below.  If you have any questions, feel free to ask.