How to Fix Windows Update Error 0x80070643? {8 Solution}

You may need to resize your WinRE partition if retrying an update and restarting your computer doesn’t work.

Windows Update displays 0x80070643 error codes when updating. This article will explain how to fix the error.

Note: This article applies to Windows 11, Windows 8, Windows 7, and Windows 10.

About 0x80070643 Errors

This error is almost always found in the Windows Update utility. It’s usually accompanied by an additional message. This error can appear in two different ways.

About 0x80070643 Errors

There were some problems installing updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80070643)
Failed to install on [date] – 0x80070643

How to Fix Error 0x80070643:

Follow these steps until the message disappears or the update is successful.

Solution 1: Install the software again

It’s worthwhile to try the installation or upgrade again at least one more time before moving on with further troubleshooting.

Solution 2: Restart your computer

A simple reboot can often be all that’s needed to complete the installation.

Solution 3: Resizing the recovery partition

It is possible that the WinRE partition is too small to update.

Tip: This step should only be completed if the update is related to the Windows Recovery Environment. KB5034441 provides an example.

Solution 4: Use the Windows Update Troubleshooter

This tool scans for and fixes problems with Windows Update.

  • Windows 11: Go to Settings > System > Troubleshoot > Other Troubleshooter. Select Windows Update and run.
  • Windows 10: Go to Settings > Update and Security > Troubleshoot Windows Update, then select Run Troubleshooter.

Solution 5: Install the latest.NET Framework

Installing and updating a corrupted.NET framework may cause errors. Install the latest.NET Framework from Microsoft on your computer.

Solution 6: Run.NET Framework Repair Tool

This tool may help if you are still getting the 0x80070643.NET Framework error despite the latest update.

Solution 7: Try updating your software after disabling antivirus

Antivirus software is notorious for interrupting updates to software.

Important Note: After completing this step, turn your antivirus back on.

Solution 8: Restart Windows Installer

The Windows Installer can sometimes cause the error 0x80070643. Select Windows Installer and highlight it. Then select the restart link on the left.

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FAQ

How do you update Windows 10?

Windows should automatically download and install any updates. You can manually download updates by selecting Start > Settings > Security & Update > Windows Update. You can download a patch here if one is available.

How to update graphics drivers in Windows 10

Download and install the most recent update from the manufacturer of your graphics card. If you have an Nvidia graphics card, for example, select the model in the drop-down list to access the correct drivers. Download the latest AMD drivers from their Drivers and Support pages if you have an AMD card.

How do I turn off Windows 10 updates?

Go to Settings > Update and Security > Advanced Options, then select Pause Updates. You can disable Windows updates for up to 35 days.

How can you rollback a Windows update?

Uninstall a Windows update if you believe it is causing issues on your computer. Choose Start > Settings > Update and Security > Windows Update. View your update history. Uninstall updates. Uninstall the update by right-clicking on it.

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