Solutions to fix Error Code 0x80070643 in Windows 10/11 Update

Error code 0x80070643 is a common Windows Update error that typically occurs when an update installation fails. This code windows update 0x80070643 may indicate issues with the update process, such as incomplete installations, corrupted files, or conflicts with other software.

Troubleshooting steps often involve checking for system corruption, ensuring sufficient disk space, and addressing potential conflicts to resolve the update issue 0x80070643 windows 10.

Windows 10 update Error 0x80070643 generally found in when it is in auto-update settings.

Disclaimers: Fixing an error related to Windows 10 updates requires checking network, Internet security, and firewall rules. If you are not sure on how to change them, please contact the technician for support.

Windows update error 0x80070643

Why Windows 10/11 Updates are Important:-

Windows 10/11 Updates are nothing but enhancement features for presentation software. There may be security updates also to protect your machine from malware, virus attacks. Generally, the windows operating system configured to check and install updates automatically through its internal service called windows 10 update.

Why this windows 10 update 0x80070643 Occurs? 

There are several reasons that system may get issues with windows 10 update service clients in the operating system. Like,

  • a) Windows Firewall issues

b) Internet connection issues

c) Files system corruption issues

d) Windows update service damaged

Solutions for Error 0x80070643 windows update

Follow the given below steps to troubleshoot this windows 10 0x80070643 update service or installation process

Windows Firewall Check:-

First change your antivirus/firewall settings to OFF,

Windows Firewall is software that runs on your computer and provides protection against network attacks from the Internet or other computers on the network.

1.To turn off the firewall,

2.Type in FIREWALL in the start button search bar and open firewall application,

3.From the left side panel, find Turn windows firewall on /off option, as shown in pic,

4. Then choose to Turn off the windows firewall in private and public network options.

Note: Once windows update Error code 0x80070643 gets fixed, you should turn on the windows firewall application.

Change Your Internet Connection:-

Switch your internet to another network and try to do Windows 11 updates.

Also, When you try to access, your computer contacts its DNS server and asks for’s IP address. The default DNS servers your network uses are provided by your Internet service provider, and they may sometimes experience problems.

You can try accessing a website at its IP address directly, which bypasses the DNS server.

File System Corruption:-

Perform an SFC scan from the command line as admin and fix if there are any files system corruptions.

You can perform a system file scan process which can be started in a command prompt window with administrative rights.
SFC /SCANNOW is the command line which needs to be executed.

SFC scan:-

1. Click on the start button and type “cmd”
2. Open “Command prompt window” and type “SFC/SCANNOW” PRESS enter button,
3. The scanning process start and this process take some time to finish. Please wait until it gives results.
SFC Scan
This video shows how to do SFC scan.

If the computer says, no integrity violations found, then try to reinstall the program which may sometimes replace the corrupted files on your office program.

Windows Update Client Damage:-

There is some fix it tools to solve some common issues, windows troubleshooter tool is one of that kind. It fixes many issues by downloading pre-requisites of windows 10/11 updates that are pending and then proceed to download original security patches or any other windows updates using the updates client application.

Use windows troubleshooter using a fix it tool, and then try a manual install of windows 10 updates.

Click here to download

There are some advanced methods to fix this windows update error 0x80070643 using some commands and resetting your operating system to a healthy restoring point.

Restoring Health:-

1.Open Cmd prompt as admin mode,

2.Type in the command as follows and press enter,

dism /Online /Cleanup-image /restore health

3.It will take time to go back to the healthy restore point.(You can also restore in by mounting the windows source file as DVD or USB stick)

dism /Online /Cleanup-image /restore Health /source:c:\offline /limit access (assuming source file in c:/ drive)

Reset the Windows Operating System:-

NOTE: Try this only if you don’t have much data on your computer because it takes a time to take backup of existing files and install your current application again.

1.If you are using windows 10, just type in “RESET PC” in the Cortana search bar(windows start button search) and select RESET PC from the results.

2. Then under the RESET PC, click on get started button to proceed.

3.There are two options to keep your files and complete clean. (You must take backup of your desktop files, pictures, downloads, documents before proceeding to completely clean.)

4. After reset, you may do updates cleanly without any issue.


At last, if you are still not able to resolve this issue (0x80070643) windows update error We recommend you to Chat with our experts. I am sure they will help you resolve this issue. If you like to see the procedure for paid support, to clarify, you may ask the Tech Available online.

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