When encountering the "0x80070643" Windows update error, it is usually caused by system file corruption, component update exceptions or driver conflicts. The solution is as follows: 1. Run Windows Update troubleshooting, and automatically detect and fix the problem through the system tools in the settings; 2. Use SFC and DISM tools, execute the dism /online /cleanup-image /scanhealth, dism /online /cleanup-image /restorehealth and sfc /scannow commands to repair the system files; 3. Clean the Windows Update cache, manually stop the service and delete the cache folder and restart the service; 4. Check for third-party antivirus software or driver conflicts, temporarily disable the security software and update or roll back the driver. If it still cannot be resolved, you can try to use Microsoft's official tools to upgrade the system.
If you encounter the Windows update error "0x80070643", it usually means that there are serious problems during the installation process, which may be a system file corruption, an error in the update component or a driver conflict. Although this problem is annoying, it can be solved in most cases.

1. Troubleshooting for running Windows Update
This is the most direct and recommended first step. Microsoft's built-in troubleshooting tool can automatically detect and fix some common problems.
- Open Settings > System > Troubleshooting
- Find "Windows Update" in other troubleshooting
- Click Run and follow the prompts to complete the inspection and repair
If the problem is found and fixed, try reupdating and see if it resolves the problem.

2. Use the System File Checker (SFC) and DISM Tools
This error is sometimes caused by corruption of critical system files. System images can be repaired using SFC and DISM.
Operation steps:
- Open Command Prompt as Administrator (CMD)
- Enter the following commands and execute them in turn:
dism /online /cleanup-image /scanhealth dism /online /cleanup-image /restorehealth sfc /scannow
These three steps respectively scan and repair the system image, and check whether the local system files are corrupted.

Note: This process may take a while, and do not interrupt the operation during this period.
3. Clean the Windows Update cache
Sometimes old or damaged update caches can also cause installation failure.
The steps are as follows:
-
Stop Windows Update Service:
- Press
Win R
and enterservices.msc
- Find the Windows Update service, right-click and select "Stop"
- Press
-
Delete the update cache folder:
- Open File Explorer and enter the path:
C:\Windows\SoftwareDistribution
- Delete all contents in it (if there is no permission, you can restart and clean it up)
- Open File Explorer and enter the path:
Restart the Windows Update service and try to update again
4. Check for third-party antivirus software or driver conflicts
Certain security software or drivers may interfere with the Windows update process.
- Temporarily disable or uninstall third-party antivirus software (such as Kaspersky, Norton, etc.)
- Update graphics card or other hardware drivers to the latest version
- If you have just installed a new driver, consider rolling back or uninstalling, and test whether there are any problems
If you have tried these methods but still can't do it, you can also consider using Microsoft's official Windows Update Assistant or Media Creation Tool to upgrade in-place.
Basically, these are the methods. Although it seems a bit too many, it is not complicated to take it step by step, but some steps are easy to be ignored.
The above is the detailed content of How to fix '0x80070643' update error?. For more information, please follow other related articles on the PHP Chinese website!

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