How To Fix League of Legends Critical Error

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League of Legends (LoL) implements updates to add new content to the game, as well as to fix issues that are occurring to the game’s system that could affect the players’ experience.

But in 2018, after an update went live, a major problem showed up instead and since then became a part of LoL. It was the critical error which reads “A critical error has occurred and the process must be terminated.”


The good thing is, there are various ways how to solve it. Keep reading to know how you can fix the League of Legends critical error.

Table of Contents

Fix the League of Legends Critical Error by Updating your System

One way to fix the LoL critical error is to update your system. This does not necessarily mean that it’s just your OS, but also the other aspects that keep your game running.

You can update Windows or your graphics card drivers to fix the critical error. Sometimes, keeping either one of these or both of these may be the cause why the error happens to your system.


Fix the League of Legends Critical Error by Uninstalling and Reinstalling the Game

You may also uninstall League of Legends on your PC or laptop and eventually reinstall it to fix the critical error.

If it is solved this way, then your game’s version could probably be the root cause of the error. It may be considered a major move, but it could be worth it.

Fix the League of Legends Critical Error by Other Ways

If the already mentioned ways are still not working, you may still try other options to fix the critical error.


This includes restarting your PC or laptop, disabling the full-screen optimization and running LoL as Administrator, or having your firewall and antivirus disabled.

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