How to fix Windows Update Error Code 643 - .NET Framework

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It'southward ever suggested to update your Windows 10 Bone regularly so that you can keep operating your computer in a smooth and impeccable mode. But some users have reported encountering an update error code 643 while trying to install Windows Update. Specifically, when y'all try to install an update for the .Net Framework, you may receive Windows Update error lawmaking 0x643 or 0x80070643. This error code is usually caused by a corruption in the .NET Framework installation or by an inconsistency in the MSI database state.

This update error lawmaking prevents you from updating your Windows update and may ultimately arrive unusable. Thee error bulletin can also appear in the following format:

Mistake(s) found: Code 643 Windows Update encountered an unknown fault.

In this guide, we have come with some easy tweaks that may likely help you to fix this mistake. And so let's go started.

Windows Update Error Code 643

To set up Windows Update Mistake Code 643, follow these suggestions:

Run the Windows Update Troubleshooter
Repair the Microsoft .NET Framework
Utilize the Microsoft .Cyberspace Framework Cleanup Utility.

Before you begin, create a system restore point commencement. It will help y'all to revert the changes if somewhere undesirable appears to happen.

Let us now see how to fix the Error Code 643 in detail.

1] Run the Windows Update Troubleshooter

Windows ten comes with an inbuilt troubleshooter tool that potentially diagnoses and fixes the mutual problems related to the Windows update.

In society to prepare this error lawmaking, y'all tin either run the Windows Update Troubleshooter or use Microsoft's online troubleshooter method. So check whether this method works for you.

If yous don't discover it useful, move down to the side by side constructive workaround.

2] Repair the Microsoft .NET Framework

Sometimes Windows Update error can also be acquired due to the corrupted .NET Framework Client Profile. Yet, you tin can repair this profile using the Programs applet in Control Panel.

To do that, follow the beneath guidelines:

Open up the Control Panel
On the Programs and Features page, search for Microsoft .Internet Framework.
Once you find, right-click on information technology and select the Repair or Change selection from the card list.
If UAC prompts on the screen, click on the Yep button and let begin the process.

Look for a while and once information technology completes the process, reboot your reckoner, and check whether the mistake Code 643 is resolved now.

Read: Error 0x800F081F while installing .NET Framework.

3] Use the Microsoft .NET Framework Cleanup Utility

Equally a concluding resort, you tin can reinstall the .NET Framework. Actually, this trouble can also occur due to the improper installation of the Microsoft .NET Framework installation. Therefore, clean up Microsoft .NET Framework thoroughly and then reinstall it.

Utilise the Microsoft .NET Framework Cleanup Utility.

Download it and then navigate to the downloaded location and extract the nil file using the context carte du jour.

Inside the extracted folder, double click on the cleanup_tool executable file. If UAC prompts, but hit Yes.

At this time, you will be asked to run the .NET Framework Setup Cleanup Utility, click the Yep button.

In the next pop-upward menu, select .NET Framework – All Versions (Windows 10) using the drop-down carte du jour.

And then hit the Cleanup At present push. It volition thoroughly remove the components related to the Microsoft .NET Framework from your device.

At present moving ahead download the latest version of the .Cyberspace Framework and then reinstall information technology.

Later the proper installation, restart your organisation and so try to perform the Windows Update.

TIP: Microsoft .Net Framework Repair Tool can fix .Internet Framework problems & issues.

All the best! Hope you may find this commodity helpful.

More TIPS: Troubleshoot .Net Framework installation problems.

Anand Khanse is the Admin of TheWindowsClub.com, a x-year Microsoft MVP (2006-16) & a Windows Insider MVP. Please read the entire mail & the comments commencement, create a System Restore Point before making whatever changes to your system & exist careful about any third-party offers while installing freeware.