What Prevents the League of Legends from Launching?

We investigated the issue after receiving many user reports and devised a list of solutions that solved the problem for most of our users. Also, we formed a list of reasons due to which the problem was being triggered which is as follows: Now that you have a basic understanding of the nature of the problem we will move on towards the solutions. It is recommended that you try these solutions in the specific order that they are listed in to prevent any conflicts.

Solution 1: Launching Directly

If you changed the directory of the game or if the shortcut is corrupted the game will no longer launch through it, therefore, it is recommended to try to launch the game directly through the executable present inside the game installation folder.

Solution 2: Providing Administrative Privileges

Certain elements of the game require special permissions in order to function correctly. If the game has not been provided the administrative privileges it is possible that it might not launch properly. Therefore, in this step, we are going to provide the game administrative privileges. For that:

Solution 3: Closing Other Applications

In some cases, it was reported that other applications such as “Steam” and “Razor Synapse” were interfering with the game and causing issues with the launch process. Therefore, in this step, we are going to be closing all the applications that are running on the background except for System processes. For that:

Solution 4: Verifying Files

It is possible that the game might be missing certain files that are elemental in the launching process of the game. Therefore, in this step, we are going to verify the integrity of all the files and replace any missing or corrupt ones.

Solution 5: Replacing the “Projects” folder

There are important files inside the “Projects” folder that is necessary for the proper launch of the. However, sometimes these files might be corrupted or they might not be detected by the game launcher. Therefore, in this step, we are going to verify them. For that:

Solution 6: Forcing Client Update

In some cases, certain “.dll” files located inside the League of Legends directory can get corrupted. These files are not very large in size and can easily be replaced therefore, in this step, we are going to delete these files and then prompt the launcher to replace them. For that:

Solution 7: Updating Graphics Card Drivers

The graphics card drivers should always be updated to the latest version provided by the developers because they often include several bug fixes and critical updates. Therefore, in this step, we will be checking to see if any updates to the graphics card drivers are available.

For Nvidia Users:

For AMD Users:

Solution 8: Changing Config File

In some cases, we can try to edit the config file and include some instructions in it that can instruct the game to launch normally. In order to do that:

Solution 9: Deleting File on macOS

In some cases, the error might be triggered due to glitch with the “lockfile” in macOS. Therefore, in this step, we will be deleting this file. In order to that:

Solution 10: Reinstalling Game on macOS

If the issue still persists even after going through the above solution, the only option left is to reinstall the game on macOS. Firstly, remove League of Legends from your computer completely and then download and install it after restarting the computer.

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