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Fix League of Legends LOL a Critical Error Has Occurred

How to Fix League of Legends a Critical Error Has Occurred

By
Lidia Rozo
2023-04-09 04:18:27

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Our guide on "How to Fix League of Legends a Critical Error Has Occurred" provides step-by-step instructions to get you back in the game


League of Legends is one of the most popular online games in the world, with millions of players worldwide. However, just like any other game or software, it can encounter errors and issues that can be frustrating for players. One of the most common errors that League of Legends players encounter is the "critical error has occurred" message. This error can be caused by a variety of issues, including outdated graphics drivers, corrupted game files, antivirus software, and more. In this blog post, we will go over the steps you can take to fix this error and get back to playing the game.

Update your graphics drivers


One of the most common causes of the "critical error has occurred" message in League of Legends is outdated graphics drivers. To update your graphics drivers, follow these steps:

  •  Go to the website of your graphics card manufacturer (NVIDIA or AMD).
  •  Download and install the latest drivers for your graphics card.
  •  Restart your computer and launch League of Legends to see if the error has been resolved.

Verify the game files' integrity


Corrupted game files can also cause the "critical error has occurred" message in League of Legends. To verify the game files' integrity, follow these steps:

  • Open the League of Legends launcher.
  • Click on the gear icon in the top-right corner of the launcher.
  •  Click on "Initiate Full Repair" and wait for the process to finish.
  •  Launch League of Legends to see if the error has been resolved.

 Delete the Logs and Config Folders


Another solution to the "critical error has occurred" message is to delete the Logs and Config folders in your League of Legends installation folder. To do this, follow these steps:

  • Navigate to your League of Legends installation folder (usually located in C:\Riot Games\League of Legends).
  •  Delete the Logs and Config folders.
  •  Launch League of Legends to see if the error has been resolved.

 Uninstall GeForce Experience



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GeForce Experience is a software that can be useful for updating graphics drivers, but it can also cause conflicts with League of Legends. To uninstall GeForce Experience, follow these steps:

  •  Open the Control Panel and go to "Programs and Features."
  •  Find "GeForce Experience" in the list of installed programs.
  •  Right-click on it and select "Uninstall."
  • Follow the prompts to uninstall the software.
  •  Restart your computer and launch League of Legends to see if the error has been resolved.

Turn off third-party antivirus utilities


Third-party antivirus utilities can also cause conflicts with League of Legends and trigger the "critical error has occurred" message. To turn off your antivirus software, follow these steps:

  •  Open your antivirus software.
  •  Look for an option to disable or turn off the software temporarily.
  •  Disable the software and launch League of Legends to see if the error has been resolved.

Run LoL as an administrator


Running League of Legends as an administrator can give it the necessary permissions to run properly and avoid the "critical error has occurred" message. To run League of Legends as an administrator, follow these steps:

  • Right-click on the League of Legends launcher.
  • Select "Run as administrator."
  •  Launch League of Legends to see if the error has been resolved.

 Reinstall League of Legends with the Hextech Repair Tool


If none of the above solutions work, you can try reinstalling League of Legends with the Hextech Repair Tool. This tool can identify and fix issues with your League of Legends installation. To use the Hextech Repair Tool, follow these steps:

  • Download and install the Hextech Repair Tool from the League of Legends website.
  • Open the tool and select "Initiate Full Repair."
  • Wait for the process to finish and launch League of Legends to see if the error has been resolved.

 End background processes


Finally, you can try ending any background processes that might be interfering with League of Legends. To end background processes, follow these steps:

  • Press Ctrl + Shift + Esc to open the Task Manager.
  • Look for any processes that might be using a lot of resources (CPU, memory, etc.).
  • Right-click on the process and select "End Task."
  • Launch League of Legends to see if the error has been resolved.


The "critical error has occurred" message in League of Legends can be frustrating for players, but there are several solutions you can try to fix it. Updating your graphics drivers, verifying the game files' integrity, deleting the Logs and Config folders, uninstalling GeForce Experience, turning off third-party antivirus utilities, running League of Legends as an administrator, reinstalling with the Hextech Repair Tool, and ending background processes are all steps you can take to resolve the error. With a little patience and persistence, you should be able to get back to playing League of Legends without any issues.



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