O Problema:

Windows users may encounter an installation failure when trying to apply a security update, specifically receiving the error message: "Windows failed to install the following update with error 0x8024200B: Security Update for Windows (KB5051979)." This error prevents the update from being installed, potentially leaving the system vulnerable to security threats.

Análise do Problema:

This issue typically manifests during the Windows Update process, where users notice that a specific update, KB5051979, fails to install. The error code 0x8024200B is associated with a failure in the update process, often linked to issues with the update files or conflicts with existing system configurations. Users might have started experiencing this issue after a recent system change, such as a new software installation or a system configuration alteration.

Causa Raiz:

The root cause of the error 0x8024200B is usually due to corrupted update files or conflicts with existing system settings. This can occur if the update files were not downloaded correctly or if there are discrepancies in the system's configuration that prevent the update from being applied successfully. Additionally, interference from third-party software, such as antivirus programs, can also lead to this error.

Solução:

To resolve the Windows Update error 0x8024200B for the KB5051979 update, follow these steps:

1. Run Windows Update Troubleshooter:

• Open Settings by pressing Windows + I.


• Navigate to Update & Security > Troubleshoot.


• Click on Additional troubleshooters.


• Select Windows Update and click Run the troubleshooter.


• Follow the on-screen instructions to complete the troubleshooting process.

2. Reset Windows Update Components:

• Open Command Prompt as an administrator. Press Windows + X and select Command Prompt (Admin).


• Stop the Windows Update services by executing the following commands:
  

   net stop wuauserv
  
   net stop cryptSvc
  
   net stop bits
  
   net stop msiserver



• Rename the SoftwareDistribution and Catroot2 folders:
  

   ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
  
   ren C:\Windows\System32\catroot2 Catroot2\.old



• Restart the Windows Update services:
  

   net start wuauserv
  
   net start cryptSvc
  
   net start bits
  
   net start msiserver



• Close the Command Prompt and attempt to install the update again.

3. Disable Third-Party Antivirus:

• Temporarily disable any third-party antivirus or firewall software that might be interfering with the update process.


• Retry the update installation.

4. Download and Install the Update Manually:

• Visit the Microsoft Update Catalog.


• Search for the update KB5051979.


• Download the appropriate version for your system architecture (x86, x64, ARM64).


• Run the downloaded file to install the update manually.

5. Perform a Clean Boot:

• Press Windows + R, type msconfig, and press Enter.


• In the System Configuration window, go to the Services tab.


• Check Hide all Microsoft services and then click Disable all.


• Go to the Startup tab and click Open Task Manager.


• Disable all startup items.


• Close Task Manager and click OK in the System Configuration window.


• Restart your computer and try installing the update again.

6. Check System Files:

• Open Command Prompt as an administrator.


• Run the System File Checker tool:
  

   sfc /scannow



• After the scan completes, attempt the update installation once more.

By following these steps, you should be able to resolve the error 0x8024200B and successfully install the Security Update for Windows (KB5051979).