How to Fix Windows 0x80070643 Error Code

An image of the Windows 0x80070643 Error Code Message While Updating

An image of the Windows 0x80070643 Error Code Message While Updating

If youā€™re encountering the Windows 0x80070643 error code while trying to update your Windows OS or install an update, youā€™re not alone. This common issue can be frustrating, but weā€™re here to help.

Compared to Mac, Windows is more error-prone, and deciphering its error messages can be a challenge. Error codes likeĀ 0x80004005,Ā 0x8007045d, and 0x80070103 can be particularly perplexing. But, worry not.

In this guide, weā€™ll walk you through the steps to resolve this update error. But before we dive in, have you tried common troubleshooting tips such as closing and reopening settings, and restarting your PC?

How to Fix Windows 0x80070643 Error Code

This error code typically indicates an issue with Windows Update, Microsoft Security Essentials, or Windows Defender updates. To fix the Windows 0x80070643 error code, disable and re-enable the Windows Recovery Environment.

Here are the detailed steps to resolve Windows 0x80070643 error code:

  • Open Command Prompt as Administrator.
  • Type the following command and press Enter: reagentc /info
  • This command will show you if Windows RE is enabled on your device.
  • To disable WinRE, type the following command and press Enter: reagentc /disable
  • To re-enable WinRE, type the following command and press Enter: reagentc /enable
  • After re-enabling WinRE, try installing the update again.

This troubleshooting tip was posted on Reddit by user r/Juthavlm. Many Reddit users, including the original poster, have found it effective. However, it may not work for everyone, so results are not guaranteed.

An Alternate Fix

In some cases, the Windows 0x80070643 error code is caused by an outdated Microsoft .NET Framework. To fix this issue, visit the Microsoft .NET Framework download page and install the latest version.

If the issue persists, it is best to wait for Microsoft to resolve it, as this problem is widespread. Avoid modifying your disk partitions, even if you find this suggested as a solution online, as it can damage your PC.

That covers everything about the Windows 0x80070643 error code. We hope you found our troubleshooting tips helpful. Before heading off, be sure to learn how to optimise Windows 11 for gaming.

This Article's Topics

Explore new topics and discover content that's right for you!

TechWindowsHow To
Have an opinion on this article? We'd love to hear it!