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Windows update trouble shooter

Albert Villarino 20 Reputation points
2026-01-10T15:28:42.9366667+00:00

My Windows update troubleshooter will not run. When I turn on my machine, I get an error message (error parsing C:\windows\Microsoft.NET\framework64\v4.0.30319\config\machine.config). Please help. P.S. I'm running Windows 11 and have all the latest updates.


Moved from: Microsoft Security | Microsoft Defender | Other

Windows for home | Other | Performance and system failures

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  1. Q&A Assist
    2026-01-10T15:28:49.9+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    It seems that you're encountering an issue with the Windows Update troubleshooter due to an error in the machine.config file. This file is part of the .NET Framework and is essential for running applications that depend on it. Here are some steps you can take to resolve the issue:

    1. Repair the .NET Framework: You can try repairing the .NET Framework installation. Go to "Control Panel" > "Programs and Features", find the .NET Framework version installed, and select the repair option.
    2. Check for Corruption: Run the System File Checker tool to check for and repair corrupted system files. Open Command Prompt as an administrator and run the following command:

    sfc /scannow

    This will scan your system for corrupted files and attempt to repair them.

    1. Recreate the machine.config File: If the machine.config file is corrupted, you can recreate it. First, back up the existing file located at C:\windows\Microsoft.NET\framework64\v4.0.30319\config\machine.config. Then, you can copy a default version of the file from another machine or reinstall the .NET Framework.
    2. Update Windows: Ensure that your Windows 11 is fully updated. Sometimes, updates can fix underlying issues with system components.
    3. Use Windows Update Troubleshooter: If you manage to fix the machine.config issue, try running the Windows Update troubleshooter again. You can find it in "Settings" > "Update & Security" > "Troubleshoot" > "Additional troubleshooters".

    If these steps do not resolve the issue, you may need to consider performing a repair installation of Windows 11, which can fix system files without affecting your personal files.


    References:

    2 people found this answer helpful.

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