How to Fix Windows Update Error 0x80070643

If retrying the update and rebooting your computer don't help, you might need to resize the WinRE partition

By
Brad Stephenson
Brad Stephenson - Lifewire Writer
Brad Stephenson
Freelance Contributor
  • Western Sydney University
Brad Stephenson is a freelance tech and geek culture writer with 12+ years' experience. He writes about Windows 10, Xbox One, and cryptocurrency.
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Updated on February 8, 2024
Reviewed by
Jessica Kormos
Jessica Kormos
Reviewed by Jessica Kormos
  • Saint Mary-of-the-Woods College
Jessica Kormos is a writer and editor with 15 years' experience writing articles, copy, and UX content for Tecca.com, Rosenfeld Media, and many others.
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0x80070643 errors are seen in Windows Update as updates are attempting to install. This article explains how to fix this error.

Instructions in this article apply to Windows 11, Windows 10, Windows 8, and Windows 7.

0x80070643 Errors

This error almost always occurs inside the Windows Update utility, usually accompanied by a larger message. Here are the two most common ways this error presents itself:

  • 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

Try these steps in order until the message disappears and the update is successful:

  1. Retry the installation. Sometimes, attempting the installation or update again will work, so it's worth trying at least once more before proceeding with any further troubleshooting.

  2. Restart your computer. It's often the case that a simple reboot will reset what's necessary for the installation to finish successfully.

  3. Resize the recovery partition. The WinRE partition might be too small to complete the update.

    Complete this step only if you're seeing the error for an update relating to the Windows Recovery Environment. KB5034441 is one such example.

  4. Run the Windows Update troubleshooter. This scans and corrects problems associated with the Windows Update utility.

    On Windows 11, go to Settings > System > Troubleshoot > Other troubleshooter. Select Run next to Windows Update.

    On Windows 10, go to Settings > Update & Security > Troubleshoot > Windows Update and select Run Troubleshooter.

  5. Install the latest .NET Framework. A corrupted .NET Framework can cause installation and update errors. Make sure the latest .NET Framework update from Microsoft is installed on the computer.

  6. Run the .NET Framework Repair Tool. If you have the latest .NET Framework update and you still get the 0x80070643 error, this tool might help.

  7. Disable your antivirus software and try the update again. Antivirus programs are notorious for interrupting things like software updates.

    Turn your antivirus program back on after you complete this task.

  8. Restart Windows Installer. A glitch in the Windows Installer sometimes generates the 0x80070643 error. Search Windows for services.msc, select Windows Installer once to highlight it, then select the Restart link to its left.

FAQ
  • How do you update Windows 10?

    Your Windows PC should download and install updates automatically. If you want to manually download an update, select Start > Settings > Update & Security > Windows Update. If a patch is available, you can get it here.

  • How do you update a graphics driver in Windows 10?

    You can download and install the latest update from whoever manufactured your graphics card. For example, if you're using an Nvidia GPU, go to the company's official downloads page and select your model from the drop-down menus to find the right drivers. If you're using an AMD card, go to that company's Drivers and Support page to download the latest update.

  • How do you turn off Windows 10 updates?

    To temporarily pause Windows updates, go to Settings > Update & Security > Advanced Options > Pause updates. You can disable updates for 35 days at a time.

  • How do you roll back a Windows update?

    If you think a recent Windows update is causing problems on your PC, you can uninstall it. Select Start > Settings > Update & Security > Windows Update > View your update history > Uninstall updates. Right-click on the update you want to remove and choose Uninstall.

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