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How to Fix Error 0x80070643 KB4023057 on Windows 11: Step-by-Step Solutions

Encountering error 0x80070643 KB4023057 on Windows 11 can be frustrating. This error usually appears during Windows Update installations, causing updates to fail.

It is important to fix this error to keep your system secure and running smoothly. Fortunately, there are several straightforward ways to resolve it.

This guide will walk you through simple, step-by-step solutions to fix error 0x80070643 related to update KB4023057.

Follow each step carefully, and you should be able to resolve the issue without needing advanced technical skills.

Quick Note Before You Begin

  • Make sure your internet connection is stable. A poor connection can interrupt updates.
  • Check that you have enough disk space on your system drive (usually C:). Updates need free space to install successfully.
  • Temporarily disable any third-party antivirus or firewall programs, as these can sometimes block updates.
  • Restart your computer before starting the troubleshooting process to clear temporary issues.

Step 1: Run the Windows Update Troubleshooter

The Windows Update Troubleshooter is a built-in tool that can automatically detect and fix common update problems.

  1. Click the Start button and select Settings (gear icon).
  2. Go to System > Troubleshoot > Other troubleshooters.
  3. Find Windows Update in the list and click Run.
  4. Follow the on-screen instructions. The troubleshooter will scan for issues and try to fix them.
  5. Once complete, restart your PC and try updating again.

Why this matters: The troubleshooter can fix many common problems automatically, saving you time and effort.

Step 2: Reset Windows Update Components Manually

If the troubleshooter doesn’t fix the error, resetting Windows Update components can help. This process clears corrupted files that might be causing the problem.

Follow these detailed steps:

  1. Press Windows + S, type cmd, then right-click Command Prompt and select Run as administrator.
  2. In the command window, enter the following commands one by one. Press Enter after each line:
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:WindowsSoftwareDistribution SoftwareDistribution.old
ren C:WindowsSystem32catroot2 Catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
  1. Close the Command Prompt and restart your computer.
  2. Try running Windows Update again.

Why this matters: These commands stop update services, rename folders that store update files (which forces Windows to recreate them), and restart the services to refresh the update system.

Step 3: Install the Update Manually

If the error persists, you can manually download and install the update KB4023057.

Here’s how:

  1. Open your web browser and visit the Microsoft Update Catalog.
  2. In the search box, type KB4023057 and press Enter.
  3. Look for the version that matches your Windows 11 system type (x64 or ARM64).
  4. Click Download next to the correct update.
  5. Once downloaded, double-click the file and follow the instructions to install it.
  6. Restart your computer after installation.

Why this matters: Manually installing updates bypasses the Windows Update process, which can sometimes fix stubborn errors.

Step 4: Check and Repair System Files

Corrupted system files can cause update errors. Running built-in repair tools can fix these files.

To do this:

  1. Open Command Prompt as administrator (see Step 2 for instructions).
  2. Type the following command and press Enter:
sfc /scannow

This will scan and repair corrupted system files.

  1. Once the scan finishes, type this command and press Enter:
DISM /Online /Cleanup-Image /RestoreHealth

This command repairs the Windows image, which supports system file repair.

  1. Restart your computer and try updating again.

Why this matters: System file errors often block updates. These tools help fix those issues safely and effectively.

Alternative Method: Use the Media Creation Tool

If none of the above steps work, you can use the Windows 11 Media Creation Tool to update your PC. This tool installs the latest version of Windows without deleting your files.

Steps:

  1. Download the Media Creation Tool from the official Microsoft website.
  2. Run the tool and select Upgrade this PC now.
  3. Follow the on-screen instructions to complete the update process.

Why this matters: This method bypasses the typical update process and can fix deep system issues causing update failures.

Frequently Asked Questions (FAQs)

What causes error 0x80070643 KB4023057?

This error is usually caused by corrupted update files, conflicts with antivirus software, or damaged system files that prevent updates from installing.

Is it safe to rename the SoftwareDistribution folder?

Yes. Renaming this folder forces Windows to recreate it and download fresh update files. It is a common and safe troubleshooting step.

Will running the Media Creation Tool delete my files?

No. Choosing the “Upgrade this PC now” option keeps your personal files and apps intact while reinstalling Windows.

How long does the SFC /scannow scan take?

It usually takes about 10 to 20 minutes, depending on your system speed. Please do not interrupt the process.

Do I need to disable antivirus before updating?

Sometimes third-party antivirus programs interfere with updates. Temporarily disabling them during the update process can help avoid conflicts.

When Nothing Works

If you have tried all the steps above and the error still persists, consider these final options:

  • Visit the official Microsoft support page for Windows Update errors: Windows Update Troubleshooter.
  • Contact Microsoft Support directly for personalized assistance.
  • Consider performing a clean installation of Windows 11 as a last resort. Make sure to back up your important data before doing this.

Conclusion

Error 0x80070643 KB4023057 can interrupt your Windows 11 update process, but it is usually fixable with simple troubleshooting steps. Starting with the Windows Update troubleshooter and progressing through resetting update components, manual installation, and system repairs covers the most common causes.

Remember to ensure your system is prepared with enough disk space and a stable internet connection. If necessary, the Media Creation Tool offers a reliable alternative for updating your PC.

Following this guide carefully should help you resolve the error and keep your Windows 11 system up to date and secure.

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