How are loading and installation of updates organized?

Discussion in 'Windows Update' started by Levlg, Mar 10, 2009.

  1. Levlg

    Levlg Guest

    Advise me, please, where to read how are loading and installation of updates
    organized? I'd like to read this in summary form and without unnecessary
    details. For example, why do some updates appear in the Notification Area in
    the form of a yellow shield, and some are installed when you turn off your
    computer? Why sometimes there are no updates to install on your computer,
    but when you check the Microsoft site, it appears that some of them need to
    be installed? Are only the Service Packs are communicative updates or other
    updates can be communicative too? Is there description of this system's
    algorithm?

    Thank you

    Lev
     
    Levlg, Mar 10, 2009
    #1
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  2. On which OS? FWIW on XPsp3 I have seen this occur
    when there is a critical update which requires a reboot
    already downloaded but another one scheduled for download.
    Apparently that can cause the AU icon to stop showing.
    Otherwise I can doubleclick on the icon and get some status.
    Also, if I had any reason to suspect that such a thing
    might happen (e.g. if the BITS service had been active)
    I could switch to a cmd window and use bitsadmin
    to find out if there was one which was still downloading
    or suspended. Even more obscurely I could use the
    ReportingEvents.log or the WindowsUpdate.log to detect
    a similar condition.


    Check the severity of the updates. AU only downloads
    critical and high priority updates. Also, some updates
    are "throttled", e.g. you can detect that that has happened
    if you go into the WindowsUpdate.log and find messages
    which imply that. The actual word used in the message
    is not "throttle" but something like "regulat".

    Note that the above observations are for XPsp3.
    Some of them appear to still apply to Vista and W7
    but other differences are happening with those OS
    that I don't yet fully understand.


    Ha! Security/obscurity IMO. Reverse engineering will out.


    HTH

    Robert Aldwinckle
    ---
     
    Robert Aldwinckle, Mar 10, 2009
    #2
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