1. #1

    Error 643 is showing on my Windows vista computer.

    I am using a computer system which runs on the Operating System Windows Vista. An error had recently occurred in my Windows vista computer. And it shows error code 643. On browsing I came to know that it is a common problem in Windows vista. Is there any way to resolve this problem?

  2. #2
    expert Array
    Join Date
    May 2012

    Re: Error 643 is showing on my Windows vista computer.

    The error code 643 is associated with the computer system’s Windows installer. This usually suggests thatNetFramework’s latest version has to be installed. In order to clear this kind of errors there are two options first one is to clear up each version of NetFramework by uninstalling from the from the latest. And second one is the Windows installer CleanUp utility, it is available to be downloaded. This utility will remove the main MSI files which needed updates. It also removes other things that are installed by the Windows installer. This is a tool which is created especially for cleaning up install problems.

  3. #3
    kumar12337 Array
    Join Date
    Sep 2012

    Re: Error 643 is showing on my Windows vista computer.

    Hi dear friend...........to solve this issue........follow the below

    press windows key+r and type appwiz.cpl in the run box

    now press ENTER Key from the keyboard.......

    after that Double click on Microsoft .NET Framework 4 Client Profile from the list

    now choose Repair .NET Framework 4 Client Profile to its original state and click NEXT

    after the completion of process .....click FINISH button

    then restart the PC now....

    after that your problem will be resolved

    ALL THE BEST!!!!!!!!!!!!!!

  4. #4
    winlearner Array
    Join Date
    Feb 2013

    Re: Error 643 is showing on my Windows vista computer.

    the problem is related to security update for Microsoft.NET framework

    to resolve it
    Step 1. Download Microsoft Windows Installer Clean Up utility
    Step 2: Remove .NET Framework using Clean Up utility

    1. Click Start ->All Programs->Windows Installer Clean Up, click Allow.
    2. find .Net Framework software,
    remove them.

    Step 3.
    Install .NET Framework 1.1 Redistributable Package and related updates

    this will resolve the error occurring in your system

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