How to Fix Update KB5055518 Failed to Install in Windows 10 (22H2/21H2)

If you’re having trouble installing update KB5055518 on Windows 10 (version 22H2 or 21H2), you’re not alone. This issue can often be fixed with a few troubleshooting steps. Here’s a straightforward guide to help you resolve it.

Manually Install the Update from the Microsoft Update Catalog

1. Go to the Microsoft Update Catalog.
2. Search for KB5055518.
3. Identify the correct update based on your system type:
   • Click Start > Settings > System > About.
   • Under “System type”, confirm if you’re using a 64-bit or 32-bit
4. Download the appropriate file from the catalog.
5. Once downloaded:
   • Open File Explorer and go to your Downloads
   • Right-click the update file and select Open.
   • The package will be added to your Windows Update cache.
6. Follow the on-screen instructions and restart your PC when prompted.

Restart and Configure Essential Windows Services

If the manual installation fails, ensure the necessary Windows services are correctly configured.

1. Open Start, type services, and press Enter.
2. Locate and configure the following services:

After adjusting each service, right-click and choose Restart.

Reset Windows Update Cache

To clear any corruption in the update cache:

Method 1: Use the Automated Batch File (Recommended)

1. Download the batch file from the video description.
2. Extract the .zip file.
3. Right-click the .bat file and choose Run as administrator.
4. Press any key to begin the reset process.
5. Restart your computer and check for updates again.

Method 2: Use Command Prompt Manually

1. Open Start, type cmd, right-click Command Prompt, and choose Run as 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

3. Restart your PC and try installing the update again.

Run System File Checker and DISM Tools

These tools help fix corrupt system files that might be blocking the update.

1. Open Command Prompt as an administrator.
2. Run the System File Checker:

sfc /scannow

3. After it finishes, run the DISM tool:

DISM /Online /Cleanup-Image /RestoreHealth

4. Once complete, restart your PC and reattempt the update.

Final Tip: Check for Updates Again

After following these steps:

• Go to Start > Settings > Update & Security.
• Click Check for updates.

If all goes well, update KB5055518 should now install successfully.

Need More Help?
If the issue still persists after these fixes, consider using Microsoft’s Windows Update Troubleshooter or reaching out to technical support.

Tags: KB5055518, Windows 10 Update Failed, Fix Windows Update Error, Update 22H2, Update 21H2, Windows Troubleshooting

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