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Effective Methods to Fix Windows 10 or 11 Update Error Code
If you're encountering the message "Your device is missing important security and quality updates" on your Windows machine, this could appear while attempting to apply updates. You might also see error code (0x80070643). Fortunately, there are built-in tools that can help fix any corrupted files. Here's how to resolve the Windows update error.
Resolving Windows Update Error (0x80070643)
To address missing security update errors, begin by restarting your computer. Use the Windows Update Troubleshooter to detect problems, run a System File Checker scan through Command Prompt, and clear out temporary files in the SoftwareDistribution folder.
Solution Steps
Reboot Your System
Before attempting any fixes, restart your computer completely. If there are numerous pending updates, some may require a full restart before proceeding to the next one.
- Click Shut down, wait for 30 seconds, then power your computer back on.
Use the Windows Update Troubleshooter
Go to the settings. Click the Start menu and then select the gear icon.
Select Update & Security. This option can be found near the bottom of the window.
Select Troubleshoot. This is located next to a wrench icon.
Click Windows Update. You'll find this option under the Troubleshoot section.
Click Run the Troubleshooter. The process may take a few minutes.
- If Windows detects any issues, it will notify you and automatically resolve them.
Perform an SFC Scan
Launch the Command Prompt. Open the Start menu, type "cmd", right-click on Command Prompt, and choose Run as Administrator.
- The System File Checker (SFC) tool can scan and identify file issues on your PC.
Enter DISM.exe /Online /Cleanup-image /Restorehealth and press ↵ Enter. This may take a little while to complete.
- Once the message The operation completed successfully appears, proceed to the next step.
Enter sfc /scannow and press ↵ Enter. The scan process will take a few minutes.
- Once completed, you should see Verification 100% complete.
- If Windows detects any issues, the details will be listed below.
Clear Temporary Files
Stop the Windows Update service. To delete temporary files, ensure that this service is fully closed. Follow these steps:
- Click the Start menu.
- Search for "services".
- Select Services.
- Right-click on Windows Update.
- Click Stop.
Go to This PC > C drive > Windows > SoftwareDistribution > Download. This is the path to the SoftwareDistribution folder where the files are stored.
Select all files in the "Downloads" folder. Press Ctrl + A to quickly select every file in the folder.
Right-click the files and choose Delete. This action will remove the temporary files.
Restart the Windows Update service. After clearing the temporary files, you can restart the services. Follow these steps:
- Open the Start menu.
- Type "services".
- Select Services.
- Right-click on Windows Update.
- Click Start.
Modify Installer Startup Type
Launch the Services app. Open the Start menu, type "services", and select the first option.
- This method can resolve error code 0x800700c1.
Double-click on Windows Update.
Choose the "Startup type" option from the drop-down menu. This is located within the General tab.
Pick Automatic.
Click Apply, then click OK. Your changes will be saved.
