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How to Fix ERROR_418 in Windows: Step-by-Step Troubleshooting Guide


If you’ve encountered ERROR_418 on your Windows device, you’re not alone. This error, while not as common as some others, can disrupt your workflow and cause frustration. Understanding what causes this error and how to fix it efficiently can save you time and headaches.

In this detailed, easy-to-follow guide, we’ll take you through step-by-step troubleshooting methods to resolve ERROR_418 on your Windows computer — no advanced tech skills required!


What is ERROR_418?

Before diving into solutions, it’s helpful to understand what ERROR_418 means. In Windows, ERROR_418 is an uncommon error related to “I’m a teapot”, a quirky HTTP status code originally from an April Fools’ joke. However, when it appears as an actual error code on Windows, it usually points to a misconfigurations, software conflicts, or corrupted system files.


Common Causes of ERROR_418 on Windows

  • Corrupted system files
  • Faulty or incompatible software installations
  • Misconfigured Windows Update settings
  • Driver conflicts
  • Malware or virus attacks
  • Incorrect registry entries


How to Fix ERROR_418 in Windows: Step-by-Step Guide

Step 1: Restart Your Computer

Sounds simple, but many errors, including ERROR_418, can be resolved by a quick system reboot.

  • Click Start > Power > Restart.
  • After reboot, check if the error persists.

If the error still appears, proceed to the next step.


Step 2: Run Windows Update Troubleshooter

Windows Update can sometimes cause error codes like ERROR_418. Running the built-in troubleshooter can automatically detect and fix issues.

  1. Press Windows key + I to open Settings.
  2. Go to Update & Security > Troubleshoot.
  3. Click Additional troubleshooters.
  4. Select Windows Update > Run the troubleshooter.
  5. Follow the on-screen instructions to resolve issues.
  6. Restart your computer and check if ERROR_418 is fixed.


Step 3: Scan and Repair Corrupted System Files (SFC and DISM)

Corrupted or missing system files can trigger errors.

  1. Press Windows key, type cmd.
  2. Right-click Command Prompt > Run as administrator.
  3. Type the following command and press Enter:

    sfc /scannow

  4. Wait for the scan to complete. It will automatically fix corrupt files.
  5. If issues continue, run the Deployment Image Servicing and Management (DISM) tool:

    DISM /Online /Cleanup-Image /RestoreHealth

  6. After the process finishes, restart your PC and verify if ERROR_418 is gone.


Step 4: Update or Reinstall Problematic Drivers

Drivers control how your hardware communicates with Windows. Conflicting or outdated drivers can cause errors.

  1. Press Windows key + X and select Device Manager.
  2. Look for any devices with a yellow warning icon.
  3. Right-click the device > Update driver > Search automatically for updated driver software.
  4. If no update is found or the issue persists, uninstall and reinstall the driver:

    • Right-click device > Uninstall device.
    • Restart your PC. Windows will reinstall the driver automatically.


Step 5: Check for Malware or Virus Infection

Malware can cause unexpected system errors.

  • Run a full scan using Windows Defender or your preferred antivirus software.
  • Quarantine or remove any threats found.
  • Restart your computer.


Step 6: Clean Boot Windows to Identify Software Conflicts

Sometimes third-party software causes errors like ERROR_418. Performing a clean boot will start Windows with minimal services.

  1. Press Windows key + R, type msconfig, and press Enter.
  2. Go to the Services tab.
  3. Check Hide all Microsoft services and click Disable all.
  4. Go to the Startup tab and click Open Task Manager.
  5. Disable all startup items.
  6. Close Task Manager and click OK in the System Configuration window.
  7. Restart your PC.

If this fixes the error, gradually enable services/startup programs one-by-one to find the culprit.


If ERROR_418 appears during Windows Update, resetting the update components can help.

  1. Open Command Prompt as administrator.
  2. Type the following commands one at a time, pressing Enter after each:

    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 computer and try updating again.


Step 8: Perform a System Restore

If ERROR_418 appeared recently, and you suspect system changes caused it, restoring your system to an earlier point may help.

  1. Press Windows key + S, type Create a restore point, and open it.
  2. Click System Restore.
  3. Choose a restore point dated before the error started.
  4. Follow the prompts to restore your system.


Step 9: Reinstall Windows as a Last Resort

If none of the above steps work, reinstalling Windows may be necessary.

  • Backup your personal data first.
  • Use Windows 10/11 installation media to perform a repair install or clean install.


Final Thoughts

ERROR_418 might seem like a mysterious code, but with patience and the right approach, you can fix it yourself. Remember to:

  • Always keep backups of important files.
  • Keep your Windows system and drivers updated.
  • Regularly scan for malware.
  • Avoid installing untrusted software.

If you found this guide helpful, share it to help others troubleshoot Windows errors with ease! And if you have any questions, drop a comment below — we’re here to help.


Keywords: ERROR_418, Windows error 418 fix, how to fix ERROR_418, ERROR_418 troubleshooting, Windows error codes, Windows update error, system file repair, Windows drivers update, error 418 Windows solution

Updated on June 19, 2025
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