can not update windows XP computer from windows update

Posted on 2006-05-06
Last Modified: 2010-04-11
when i try to update a computer in my network with windows update i get an error message:   Files required to use Microsoft update are no longer registered or installed on your computer.  What can I do to be able to install these important updates? ..  the computer is registered..  has anybody experience this issue? and what was your resolution.

Question by:d01970g
    LVL 97

    Accepted Solution

    Greetings, d01970g !

    Go directly the Windows Update site

    Delete your Temporary Internet Files and History, then delete the configuration files from the WindowsUpdate folder. Then add Windows Update to the Trusted Zones Site.  Make sure your system time and date is correct.

    Start > Run and type regsvr32 MSXML3.DLL
    Do the same for

    Windows Update Trouble Shooter

    Best wishes!

    Author Comment

    Could you guide me a little?...
    where is the windowsUpdate folder located so i can delete the configuration?
    how can i add windows update to the trusted zones site?
    LVL 97

    Expert Comment

    The main fix is to re-register the above dll files.

    >> where is the windowsUpdate folder located so i can delete the configuration?

    Do a search for the WindowsUpdate folder.  It is located in C:\Program Files\WindowsUpdate.

    >> how can i add windows update to the trusted zones site?

    With IE open, go to Tools > Internet Options > Security tab. Click on Trusted Sites icon.  Click on Sites button. Add

    Click OK. OK.
    LVL 5

    Assisted Solution


    Following on from the above posts, there are quite a few references to this on the Microsoft website.

    The general consensus does seem to be that re-registering DLLs seems to do the trick in most instances.

    Some people find just registering the MSXML3 dll works (as mentioned above):

    1. Click Start.
    2. Choose Run.
    3. In the Run box, type:   regsvr32 MSXML3.DLL
    Press okay

    If you still get the same error try following the below commands to restart the wuauserv service and re-register further DLLs

    1. Click Start.
    2. Choose Run.
    3. In the Run box, type (pressing okay after each one) :-

    net stop wuauserv

    Repeat for the following:
    regsvr32 wuapi.dll
    regsvr32 wups.dll
    regsvr32 wuaueng.dll
    regsvr32 wuaueng1.dll
    regsvr32 wucltui.dll
    regsvr32 wuweb.dll
    regsvr32 MSXML3.dll
    regsvr32 qmgr.dll
    regsvr32 qmgrprxy.dll
    regsvr32 jscript.dll

    net start wuauserv

    You could also try re-installing the latest version of windows update from here:

    Select save when prompted to save or open the file, then once downloaded double click on the file to execute it.

    Hope this helps



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