Fixing the 0x8000FFFF Error Code in Windows Update

1. Run the Windows Update Troubleshooter

Identify and resolve issues using the built-in troubleshooter:

1. Go to Settings > Update & Security > Troubleshoot.
2. Select Additional Troubleshooters.
3. Choose Windows Update troubleshooting and Windows run the troubleshooting process.

2. Check for Corrupted System Files

Use the System File Checker (SFC) to repair missing or damaged system files:

1. Open Command Prompt as an administrator.
2. Type sfc /scannow and press Enter.
3. Wait for the scan to complete and reboot your system.

3. Use the DISM Utility

If SFC fails to resolve the issue, use the Deployment Imaging Service and Management Tool:

1. Open Command Prompt as an administrator.
2. Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
3. Wait for the process to finish and restart your system.

4. Run Antivirus Software Temporarily

Disable your antivirus software temporarily to ensure it’s not interfering with updates:

1. Turn off your antivirus software.
2. Attempt the update or installation again.
3. Re-enable your antivirus software after completing the process.

5. Reset Windows Update Components

Manually reset components that manage Windows Updates:

1. Open Command Prompt as an administrator.
2. Run the following commands one by one:

   net stop wuauserv
   net stop cryptSvc
   net stop bits
   net stop msiserver
   ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
   ren C:\Windows\System32\catroot2 Catroot2.old
   net start wuauserv
   net start cryptSvc
   net start bits
   net start msiserver
   

6. Conduct a Clean Boot

Perform a clean boot to eliminate startup conflicts:

1. Press Windows + R, type msconfig, and press Enter.
2. In the System Configuration window:
   • Go to the Services tab and check Hide all Microsoft services.
   • Click Disable all.
3. Go to the Startup tab, click Open Task Manager, and disable all startup items.
4. Restart your computer and try the update again.

7. Update Windows Manually

If the issue persists, download and install updates manually:

1. Visit the Microsoft Update Catalog.
2. Search for the specific update you need and download it.
3. Follow the on-screen instructions to install the update manually.

In Conclusion

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