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League of Legends won’t start. 10 Possible Solutions

June 27, 2022

doLeague of Legends won’t start? Here we will show you possible solutions for this problem. League of Legends is an award-winning online multiplayer action game developed by Riot Games. It has more than 120 million downloads and many active players daily.

Many users reported in various forums and searched for solutions to an error, where the main game process of League of Legends does not start on your computer. We faced the same problem and tried many possible solutions. Some of them worked and we have put them together in this article for you.

Index of contents

  1. Factors that prevent league of legends from starting on your PC
    1. 1. Pending updates for the game
    2. 2. Outdated GPU drivers
    3. 3. Corrupt game client or shortcut
    4. 4. Interferences from other processes
    5. 5. Lack of administrator privileges
    6. 6. Internet connection problems
  2. League of Legends won’t start. 10 Solutions
    1. 1. Launch the game directly with the League client executable file
    2. 2. Run League Of Legends with administrator privileges
    3. 3. Whitelist the League of Legends client on the firewall
    4. 4. End all other background processes running in task manager
    5. 5. Check the integrity of the game files
    6. 6. Update the league client by force
    7. 7. Download graphics driver updates and install them
    8. 8. Edit the configuration file
    9. 9. Remove lock file on mac
    10. 10. Uninstall and reinstall league of legends
  3. Frequent questions
    1. What do you do when League Of Legends doesn’t open?
    2. Why won’t my League of Legends let me play?
    3. Why is my lol stuck on loading screen?
    4. Why doesn’t my league open mac?
  4. final thoughts

Factors that prevent league of legends from starting on your PC

These are the reasons why League of Legends won’t open on your Windows or macOS computer:

1. Pending updates for the game

If any online game is out of date, the game will not run on your PC or you will not be able to connect to a lobby with updated players. Most games update automatically when they detect a network connection or when the game starts. Only after the update is complete, you will be able to load the game and play it.

Maybe you might be interested in: How to Record League Of Legends With Obs

2. Outdated GPU drivers

If your graphics card drivers are old, they may not be compatible with the game. You will need to update your video drivers regularly so that you can get the best performance from your computer.

3. Corrupt game client or shortcut

It is quite common for shortcuts or game launchers to get corrupted over time. This will not open the game as expected. This problem can be fixed by repairing the files and running a virus scan of the computer.

4. Interferences from other processes

Processes and applications running in the background can prevent the computer from launching the game as there would not be enough RAM to launch the game. Users will have to create adequate memory for the League of Legends game to run.

5. Lack of administrator privileges

Sometimes the game needs to be run in elevated mode to work properly without bugs and glitches. In this case it cannot start on your computer. You must provide administrator rights for the PC to work.

6. Internet connection problems

Since League of Legends is an online game, you need an Internet connection to connect to a server and to game sessions. Check if you have an active internet connection and then try to launch the game. Poor internet can cause server issues.

League of Legends won’t start. 10 Solutions

You can use these resolutions to start League of Legends if it can’t start correctly when it starts normally. The following are the possible solutions when League Of Legends Won’t Start on your Windows and Mac computer.

1. Launch the game directly with the League client executable file

Your first attempt to launch League of Legends should be to open the app generically. For this, you can use the game’s executable file (lol.launcher.exe). Just double click on it to open it. If it doesn’t open, try restarting your PC and then launch the LoL client on your PC.

2. Run League Of Legends with administrator privileges

There are two ways to run the League of Legends game as a system administrator:

  1. you can use the app launcher.admin.exe in the League of installation directory folder in file explorer.
  2. Alternatively, you can right click on the shortcut of LOLgo to menu Propertiesgo to the tab Compatibility and check the option Run this program as administrator to start this game with administrative privileges.

These settings will remain the same unless changed or uninstalled.

3. Whitelist the League of Legends client on the firewall

The Windows Firewall or your antivirus firewall may be responsible for restricting the game’s access to the Internet. Without internet, you won’t be able to play League of Legends. If you have an antivirus program, you will need to exclude the League of Legends launcher from firewall checking.

League of Legends won't start

You may also need to clear previous Firewall and League of Legends related conflicts in the Firewall history. Open the game to see if it opens after you have overcome this network barrier.

4. End all other background processes running in task manager

Full RAM or high CPU usage can prevent your computer from starting more processes. You will have to end unwanted processes to open new ones. You will need the help of Task Manager Windows (Ctrl + Shift + Esc) for this. These are the steps to follow:

  • Step 1: use the keyboard shortcut to start the Task Manager on your computer. You can also open this window through the screen Task Completion (Ctrl + Alt + Del).

League of Legends won't open for me

  • Step 2: Locate all the unwanted processes and click on one of them.
  • Step 3: now press the button Finish homework to stop her by force.
  • Step 4: after finishing these tasks, restart your computer to apply these changes. Then run LOL to see if the problem exists.

This will reduce CPU usage as the running process will be killed instantly. If all running processes are integral to the functioning of your computer, your only option is to get a RAM upgrade.

Note: these processes include the League of Legends processes, if any.

5. Check the integrity of the game files

If game files are missing, the game may not run. To recover these files, you will need to verify the integrity of the files in the game’s installation folder. This will also repair any damaged or missing files caused by improper installation process. Use this method to check the availability of all files:

  • Step 1: open the app launcher.admin on your computer. This is a game manager interface that is available in the installation directory.
  • Step 2: click the gear icon Setting at the far right of the title bar.
  • Step 3: In this menu, select the option Initialize Full Repair.
  • Step 4: the file verification process will take some time to complete. When it’s done, close the window and restart your computer.

Once complete, all missing files will be added back to the League of Legends installation folder. If there is a damaged system file or cfg file, it will also be replaced.

6. Update the league client by force

Generally, any online game updates automatically when a network is detected or when the game is started. Since unexpected moments call for unexpected measures, we will have to force the game to check for updates. This is how you can make the League of Legends client check for patch updates, forcibly when League Of Legends won’t start:

  • Step 1: open File Explorer (Windows + R) and go to the main League of Legends installation folder.
  • Step 2: open the folder RADS and go to the Project directory.
  • Step 3: locate these two folders and delete them:
    • lol_pitcher
    • lol_patcher
  • Step 4: then go back to the main game directory and delete all the files ms.win…dll in this installation directory.
  • Step 5: after all the files are gone, run the game launcher.

All deleted files will be replaced over a period of time, by downloading an update. Run the main executable file, located in the installation directory, after completing this download process to check if the problem persists.

7. Download graphics driver updates and install them

There are three ways to update graphics card drivers on a PC:

7.1: Graphics Card Interface Application

Your first option is to use the GPU Developer Interface application to download driver updates. If your PC runs on an Nvidia GPU, you have the Geforce Experience tool. To update AMD Radeon settings and drivers, you can use the application Radeon Adrenaline.

You only have to “Search for updates” and click the button Discharge to download the updates. Automatically restart your computer after the update has finished downloading. You will also receive prompts from the installer to update your graphics drivers.

LOL won't start

We invite you to read: Guide: How Much Have I Spent On League Of Legends?

7.2: Download from the website

Both Nvidia and AMD Radeon graphics card users can download the driver updates for their respective GPUs from the official websites. They are downloaded as executable files (.exe). Sometimes you can choose which updates you want to download. We recommend you to check all the boxes. Once the download process is complete, run these files and the graphics card drivers will be installed on your computer.

7.3: Manual Update

Here are the steps to follow for manual update if League Of Legends won’t start:

  • Step 1: press the keys Windows Y X together on your keyboard and choose the option Device administrator on the menu quick link.

LOL it doesn't start

  • You can also use the search bar or the tool Run.
  • Step 2: locate the section Display adaptersinside which you should find your video card.
  • Step 3: right click on your dedicated display controller and select the option Update drivers.

LOL it doesn't open

  • Step 4: in the update wizard menu, click the option Search for drivers automatically.

LOL it doesn't open

This will detect any pending updates and download them. Once the download process is complete, restart your PC to install the updates. Your game launch process should not be affected now.

8. Edit the configuration file

Configuration files contain the configuration details of the game. If we modify this, we could run LoL on your computer. This is what you have to do:

  • Step 1: go to the folder League of Legends and enter the folder RADS > system folder.
  • Step 2: locate the file cfg and open it through the app memo pad.
  • Step 3: scroll through the text document and find the line leagueClientOptIn = yes.
  • Step 4: in this line, change the Yes for him Nope. Your line should now look like this:

ligaClientOptIn = no

  • Step 5: save these changes and try to start League of Legends.

9. Remove lock file on mac

If you play LoL on a Mac PC, you can try getting rid of the game crash file to see if it helps fix the issue. league of legends not running problem on your computer. Follow these steps to remove this file:

  • Step 1: start the tool Finder (Option + Command + Space) on your Mac and go to the menu Applications.
  • Step 2: look for the app League of Legends and right-click on it to open a context menu.
  • Step 3: select the option Show package content and go to the folder LOL.
  • Step 4: find the lock file here and delete it.

You don’t have to double-check the integrity of Riot game files to get it back. Run the game and it will be replaced by the same file.

10. Uninstall and reinstall league of legends

Your last option is to uninstall and reinstall League of Legends on your PC. you can use the menu Programs and characteristics in the Control Panel or the window Add or Remove Programs in the app Setting. To get the game again, you can download League of Legends from the Riot Games website and install it on your computer, after connecting with your Riot ID.

Frequent questions

Some users are desperate because League of Legends does not start, some of these have asked questions about the subject. We will answer some questions below:

What do you do when League Of Legends doesn’t open?

Yes League of Legends won’t open on your PC, try to open the game after providing administrator privileges, updating graphics card drivers, modifying the configuration file, verifying the integrity and availability of the game file, and removing and reinstalling the game on your computer.

Why won’t my League of Legends let me play?

There are six discernible reasons that can prevent players from playing League of Legends:

  1. Pending updates for the game.
  2. Outdated GPU drivers
  3. Corrupt game client or shortcut.
  4. Interferences from other processes.
  5. Lack of administrator privileges.
  6. Internet connection problems.

Why is my lol stuck on loading screen?

If the League of Legends launcher is stuck on the loading screen, it means that the game servers are facing some kind of problem or are under maintenance by the developers. You will have received a notice from the developer about it. Players will not be able to access the game servers if the loading screen does not disappear. We have to wait.

Why doesn’t my league open mac?

League of Legends may not work on your Mac due to existing lock file or suboptimal system settings. You’ll need to open the game’s installation folder and delete the lock file to see if it helps with the startup process.

Take a look at: 5 LOL Programs Every Gamer Needs

final thoughts

The above list of solutions should be enough for you to resolve the problem when League Of Legends won’t start on your computer. If not, you’ll need to contact Riot support and hopefully the developers will release a patch update with a fix to this issue. We hope we have fulfilled your expectations with our tutorial, and, in particular, we hope that you are already enjoying your game. Come back soon and happy gaming!