How to fix Windows update error code 643

How to fix Windows update error code 643

Windows 7, one of the most favorite operating system launched by Microsoft. Despite official support for it will go down in 2020, many users still prefer and use it to this day. Still, no updates are released for Windows 7, making it even more competitive and thoughtful. However, in a few cases, you may see some errors when trying to start the update. One of these errors there is also an error called error code 643. This error is widely very common and tends to come in now and then for someone. The basic reason for this problem is due to the corruption of the .NET Framework. However, that is not the only cause of it is restricted to it and can also be caused by software conflict. We shall discuss the causes of the error code in more detail below. Errors mainly occur on Windows 7 but can occur in Windows 8 and 8.1 as well. Because of this error, your Windows will not update, and you will not be able to obtain updates from Microsoft.

Solution 1: Run Windows Update Problems

As this error restrict Windows from updating, the first thing you can do is download, install and process the Windows Update troubleshooter to see if it can resolve the problem or inform you what steps you should take. To do this in Windows 7, you have to download it first.

  • Head over to this link and download the troubleshooter.
  • Then, after it has been downloaded, run it to the directory you downloaded it to.
  • Once opened, click on Advanced and click apply fixes automatically.

It will take a few seconds if there are some improvements to be made.
Once done, your error may have been solved. If not, you need to try the solution below.

Solution 2: Remove and Reinstall the Microsoft .NET Framework:

One of the factors that can create this error is a corrupted installation of Microsoft .NET Framework. The solution is to uninstall or remove Microsoft .NET Framework fully and then again install it. To do that, you have to download the .NET Framework Clean tool to remove all components of the .NET Framework and then reinstall it.

  • Download Microsoft .NET framework Utilities Clean from here. Then extract the zip file.
  • Run the extracted files.
  • Once you run it, you’ll see a window with different options; click Cleanup Now. It will clean and remove Microsoft .NET framework components completely from your system.

After that, go ahead and download the Microsoft .NET Framework (latest version) from here and reinstall.
Once you have installed, reboot your computer, and hopefully, your problem will have been solved.


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