Win7 update error code 643 KB 973688

Error code Win 7 643 for update for Microsoft XML Core Services 4.0 Service Pack 2 for x 64 systems (KB973688). Must have tried 10 times at least. All I get is the error code and it can not install XML based Services. Have you tried system restore, but that did not help at all.  If anyone has a solution please let me know. Also how can I remove the extra cannot be installed in "Update history".  One thing it says XML Core Services 4.0 Service Pack 2.  I do not have the Service Pack 1?
Thank you

Shadowwraith wrote:

[1] ... As you suggested, I used the Microsoft fix it program and...

[2] ... An observation, that I pointed out, this is whenever I try to update KB973688 Windows uses the [original] file downloading, so apprently isn't replaciing real upgrade file...

[3] ... Another observation is that system update readiness tool ran for all of 15 seconds or more.  Though according to the informatiom page it takes quite a bit longer.

A1. What program "At Microsoft fix it program" (e.g. KB971058)? I don't mention a "fixit" in any of my previous posts on this topic.

A2. It is assumed that you should not have deleted the content of...

%windir%\SoftwareDistribution\Downloads
<=this>

.. .alternance step 2 in my second reply to this topic.

In addition, if you had completed all stages #1 à #4 in my second response to this issue, Windows Update should no longer offer KB973688.

A3. It is quite possible that the preparation of updated system (or CheckSUR) tool had already been downloaded & run my Windows Update.

TIP: Read the Symptoms section of http://support.microsoft.com/kb/973688.

(1) do you have an installed application that "uses Microsoft XML Core Services (MSXML) to process XHTML files" and (2) that "generates a lot of requests when it tries to retrieve well known from the definition of the Type of Document (DTD) from a World Wide Web Consortium (W3C) Web server files" and (3) to "these redundant retrieval requests cause the W3C Server block requests DTD?

If you can't answer YES to all three of these conditions, you don't need to install KB973688 and steps #1-#4 in my second reply to this topic should prevent Windows Update from the offer.

Sorry, but I can't be any simpler than that. Yes, it's a little complicated, but it isn't either "rocket science". Good luck.

Tags: Windows

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