By
Angel Marquez
2023-11-23 02:38:29

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Discover effective solutions to How to fix League of Legends critical error has occurred and the process must be terminated.


If you've encountered the dreaded League of Legends critical error and are looking for a solution, you've come to the right place! In this guide, we'll walk you through some easy steps to resolve the issue and get back into the game. So, let's dive in!

How to fix League of Legends critical error has occurred and the process must be terminated


Step 1: Update your operating system and graphics drivers


To ensure optimal performance and avoid any bug-related issues, it's crucial to keep your operating system and graphics drivers up to date. Outdated software can often lead to compatibility issues and cause critical errors in games like League of Legends. Here's how you can update your system and graphics drivers:


For Windows users:

  • 1. Go to "Settings" and click on "Update & Security."
  • 2. Check for updates and install any available updates for your operating system.
  • 3. Visit the website of your graphics card manufacturer (e.g., NVIDIA or AMD) and download the latest drivers for your specific graphics card model.
  • 4. Install the downloaded drivers following the provided instructions.

For macOS users:

  • 1. Click on the Apple menu and select "System Preferences."
  • 2. Click on "Software Update" to check for any available updates.
  • 3. If there are updates available, follow the on-screen instructions to install them.
  • 4. Visit the website of your graphics card manufacturer (e.g., NVIDIA or AMD) and download the latest drivers compatible with macOS.
  • 5. Install the downloaded drivers following the provided instructions.

Updating your operating system and graphics drivers can often resolve critical errors by ensuring that your system is equipped with the necessary updates and enhancements to run the game smoothly.

Step 2: Disable full-screen optimization and run as administrator


Sometimes, third-party applications can interfere with League of Legends' smooth operation. To prevent unauthorized changes by these applications, try disabling full-screen optimization and running League of Legends as an administrator:

  • 1. Right-click on the League of Legends shortcut or executable file.
  • 2. Select "Properties" from the context menu.
  • 3. Navigate to the "Compatibility" tab.
  • 4. Checkmark "Disable full-screen optimizations."
  • 5. Checkmark "Run this program as an administrator."
  • 6. Click "Apply" and then "OK" to save the changes.

By disabling full-screen optimization and running the game as an administrator, you can ensure that League of Legends has the necessary permissions and settings to operate without any interference from other applications.

Step 3: Restart your PC





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A simple restart can work wonders in resolving many issues. By restarting your computer, you'll ensure that any lingering problems are cleared out, allowing for a fresh start.

  • 1. Save any open files or unsaved work.
  • 2. Click on the Start menu and select "Restart."
  • 3. Wait for your computer to reboot.

Restarting your PC can help resolve any temporary glitches or conflicts that may be causing the critical error in League of Legends.

Step 4: Disable firewall and antivirus temporarily


Firewall and antivirus software can sometimes interfere with League of Legends' connection or settings. Temporarily disabling them can help identify whether they're causing conflicts:

  • 1. Locate your firewall/antivirus software icon in the system tray (usually at the bottom-right corner of your screen).
  • 2. Right-click on the icon and look for options like "Disable," "Pause," or "Turn Off." Choose the appropriate option to disable them temporarily.

Disabling your firewall and antivirus temporarily allows you to determine if they are the cause of the critical error. However, it's essential to enable them once you have finished testing to ensure the security of your system.

Step 5: Reinstall League of Legends and Riot Games


If none of the above solutions have worked so far, reinstalling League of Legends and Riot Games might be your best bet. Here's how:


Uninstall League of Legends:

  • 1. Go to the Control Panel (Windows) or Finder (macOS).
  • 2. Find "Add or Remove Programs" (Windows) or "Applications" (macOS).
  • 3. Locate League of Legends in the list of installed programs/applications.
  • 4. Select it and choose "Uninstall" or "Move to Trash."

Reinstall League of Legends:

  • 1. Visit the official League of Legends website and download the latest installer.
  • 2. Run the installer file you downloaded.
  • 3. Follow the on-screen instructions to complete the installation process.

Reinstalling the game can often resolve critical errors by replacing any corrupted or missing game files. Make sure to download the latest version of League of Legends from the official website to ensure a clean installation.



By following these steps, you should be able to resolve the critical error in League of Legends successfully. We hope you found this guide helpful and that you'll soon be back on the Rift, enjoying your favorite game. It's essential to keep in mind that these guidelines are provided as general suggestions. If you encounter any difficulties or specific issues, we recommend reaching out to League of Legends' official support channels for further assistance. Good luck and have fun!


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