Windows update fails with error code 0x643

Anonymous
2009-10-14T15:22:25+00:00

I have downloaded the recent Microsoft updates and all but one installed successfully.  The failing update was:  Microsoft .NET Framework 1.1 Service Pack 1 Security Update for Windows 2000, Windows XP, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 (KB953297);

with an error code of  0x643.

We tried several times to install it and it keeps failing.  It was originally the 3rd update in the list to install.  After failing the first time, it was the only one we were trying to install.  We tried it after the restart required for the other updates.

Windows for home | Previous Windows versions | Windows update

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  1. Anonymous
    2009-10-31T13:15:31+00:00

    Hello D9W,

    Thank you for using Microsoft Answers Forums.

    Solution for Error Code - 0X643 :

    This is a common issue with the .NET Framework Updates.

    http://support.microsoft.com/kb/923100

    Follow the steps from the above web link to resolve the issue.

    That should do the trick for you.

    Thank you.

    Regards,

    Augustine.

    UDAY$012 Please let me know whether the solution worked or not, I appreciate and value your feedback. UDAY KUMAR

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  2. Anonymous
    2009-10-31T21:37:04+00:00

    Hi Swathi, thanks for your interest in solving my problem but it still tells me it can't install service pack 1. My error code when I try this installation is 643. This is a problem that has been ongoing for about a year now and I just let it go but now in trying to upgrade my Vista OS to Windows 7 it has come back to bite me, and tells me it needs it installed before preceding with the Windows 7 upgrade. Yesterday I did download the system readiness tool and then tried to download pack 1 from the Microsoft site and it failed. Today I did your suggestion of a clean boot with the same results. In the past all recomended downloads have installed correctly it's just service pack 1 that's been trouble.

    Ocracoke19

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  3. Anonymous
    2009-11-01T05:01:45+00:00

    Thanks for the information, but after following your direction I still got an error when installing .Net Framework 2.0 >> Error 25015.Failed to install assembly 'C\windows\microsoft.nt\framework\v2.050727\microsoft.visual basic.compatibility because of system error 0x80131107 – What does that mean? And how do I get around it?

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  4. Anonymous
    2009-11-02T00:32:12+00:00

    Could not be installed

    Installing Microsoft .NET Framework 1.1 Service Pack 1 Security Update for Windows 2000, Windows XP, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 (KB953297) (update 1 of 1)...

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  5. Anonymous
    2009-11-02T01:01:17+00:00

    for several weeks I have been getting notified of an available update on a daily basis. I have tried to install it but it fails evry time with the following message >  Microsoft .NET Framework 1.1 Service Pack 1 Security Update for Windows 2000, Windows XP, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 (KB953297)

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