Windows update .NET Framework 4 error

By mierau
Sep 4, 2012
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  1. Hi,

    I can't install .Microsoft .NET Framework 4 Client Profile for Windows 7 x64-based Systems (KB982670) (using Windows Update). Please see below the details:

    Installation date: ‎9/‎4/‎2012 9:57 AM

    Installation status: Failed

    Error details: Code 643

    Update type: Recommended

    The Microsoft .NET Framework 4 Client Profile provides a subset of features from the .NET Framework 4. The Client Profile is designed to run client applications and to enable the fastest possible deployment for Windows Presentation Foundation (WPF) and Windows Forms technology.

    More information:

    Help and Support:

    I tried to install the standalone version, but I get the same error.

    The problem is a few months old. I messed up smth. trying to install a program sent by one client. I couldn't solve it using the restore option at that time either.

    Any suggestion would be much appreciated.

    Thanks in advance!
  2. ComputerGuy55

    ComputerGuy55 TS Maniac Posts: 380   +8

  3. mierau

    mierau TS Rookie Topic Starter Posts: 30

    Hi there,

    Thanks for your reply.

    Already been there, tried that...if it were that simple :) It seems my problem is "deeper".
  4. ComputerGuy55

    ComputerGuy55 TS Maniac Posts: 380   +8

    Have you checked the KB# and seen if it is already installed? Sometimes this can happen where windows updates gets confused. it says you need update KB******* but then you check your update history and sure enough it's already there. In this case, you uninstall the update and reinstall it. This should refresh it and show the update installed and not as required to install.
  5. Darth Shiv

    Darth Shiv TS Evangelist Posts: 1,410   +300

    You could try the MSDN forums. There are MS employees and MVPs who read those forums and should be able to help out.
  6. Jad Chaar

    Jad Chaar TS Evangelist Posts: 6,473   +963

    make sure you note the right .net frameworks because a lot of programs use them and can become corrupt if .net is uninstalled or will not function if it is reinstalled.

    try this: I always get my Windows issues solved here. Microsoft engineers always respond and solve the issue.

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