Install failure error Error Code: 0x643 - .NET 3 SP1

Discussion in 'Windows Update' started by ComputerLady, Apr 27, 2008.

  1. ComputerLady

    ComputerLady Guest

    I have had this failure showing up for quite a while now, and have not had
    any luck in resolving the problem. Unlike some of the other posts I've found
    in this message thread mentioning this specific error code, this is related
    to installing the SP1 update for .NET Framework 3.0 relating to KB929300. I
    did try some of the ideas presented in disabling darn near every background
    running service, including the Catalyst Suite for my ATI graphics card. It
    goes through all of the steps of downloading the update, and installation
    steps - which I am approving - but still no joy. There has to be some reason
    for the failure, but I'm not seeing it!

    Web Development/Multimedia Productions - Design COMP
    President/Webmaster - CEBUG
    ComputerLady, Apr 27, 2008
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  2. If you're absolutely, 100% positive that the Catalyst Control Center has
    been disabled on startup, then run the .NET Framework setup verification

    * Read the tool's limitations at the top of the above page *

    Have it verify the .NET 2 and 3 Framework installations.

    Unified .NET Framework Troubleshooting Guide

    MowGreen [MVP 2003-2008]
    *-343-* FDNY
    Never Forgotten
    MowGreen [MVP], Apr 27, 2008
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  3. See Resolutions Methods 1 or 2 in
    (ignore the title).

    If no joy, see this related post by my colleague MowGreen:

    NB: Write down what .NET Framework versions are already installed before you
    go uninstalling/removing any of them!

    How to determine which versions of the .NET Framework are installed and
    whether service packs have been applied
    PA Bear [MS MVP], Apr 27, 2008
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