[Fixed] Windows Update Error Code 0x800b0109

 Error Code 0x800B0109: If you receive an error message stating “Some Windows update files are not signed correctly, installer encountered an error 0x800b0109,” this means the Windows service is unable to verify. Windows Update Error Code 0x800b0109 is common across all Windows operating systems

https://www.officelivesupport.com/window-update-error-code-0x800b0109/


Disable Proxy Internet Connection

  1. Open Internet Explorer and click on Tools > Internet Options.
  2. Navigate to the Connections tab and click on LAN Settings.
  3. Ensure the proxy server option is unchecked.

Note: If your antivirus software has proxy settings enabled, disable them as well.

Repair Windows Update Services

Follow these steps to reset Windows Update services using command lines:

  1. Open the Command Prompt as an administrator.
  2. Run the command: net stop wuauserv to stop the Windows Update service.
  3. Navigate to C:\Windows\ and rename the SoftwareDistribution folder to SoftwareDistribution.old.
  4. Restart the Windows Update service using: net start wuauserv.
  5. Check for updates again to confirm the issue is resolved.

Note: These steps will not affect your personal data or programs.

SFC Scan to Fix Error Code 0x800B0109

The SFC (System File Checker) scan helps detect and repair corrupted system files:

    1. Open Command Prompt as an administrator.
    2. Type SFC /SCANNOW and press Enter.

SFC Scan

  1. Wait for the scan to complete and follow any on-screen instructions.

Note: A positive result means the issues are resolved, while a negative result indicates further corruption requiring additional repairs.

Final Solution: Reinstall Windows Operating System

If all else fails, reinstalling Windows may be necessary:

  1. Back up all personal data to avoid data loss.
  2. Follow the official Microsoft guide to reinstall your version of Windows.

Important: Verify hardware compatibility with your Windows version before proceeding.

Location: New York, NY, USA

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