Nothing ruins a grind session like the League of Legends client refusing to cooperate. In this guide, we will break down how to full screen League of Legends and fix the most common issues so you can get back to the Rift without losing your mind.

If you are looking for a fast solution to get back into the game, here are the highlights from the guide:

• How to Full Screen League of Legends: Press Alt + Enter while in-game, or change the Window Mode to Full Screen in the Video settings menu.
• Why Won’t League of Legends Open: Open Task Manager (Ctrl + Shift + Esc), kill all Riot and League processes, and ensure Riot Vanguard is running in your system tray.
• How to Repair League of Legends: In the Riot Client, click your Profile Icon > Settings > League of Legends and hit the Repair button to fix corrupted data.
• How to move league of legends to another drive: Copy the Riot Games folder to your new drive, then update the Install Path in the Riot Client settings to point to the new location.

How to Full Screen League of Legends

If you find yourself stuck in windowed mode, it can be incredibly distracting. Most players prefer full screen to ensure their mouse does not accidentally click off the game onto a second monitor or the taskbar during a chaotic teamfight.

The quickest way to toggle your display mode is by using the universal shortcut: Alt + Enter. Pressing these keys simultaneously will force the game to switch between windowed and full screen modes instantly.

If the shortcut does not work, you will need to dive into the in-game settings. Since the League client and the actual game engine are separate, you can only do this once you are inside a match or the Practice Tool.

1. Press Esc to open the options menu.
2. Navigate to the Video tab on the left.
3. Look for the Window Mode dropdown menu.
4. Select Full Screen and click okay.

If your game still looks off, make sure your in-game resolution matches your monitor’s native resolution. If you have a 1080p monitor but the game is set to 720p, it might look blurry or have black bars.

Why Won’t League of Legends Open

It is a common frustration: you double-click the Riot Client icon and nothing happens. This usually occurs because a previous instance of the game is hung in the background, or your security software is blocking the launch.

The first thing you should do is check your Task Manager. Press Ctrl + Shift + Esc and look for any processes named Riot Client or League of Legends. Right-click them and select End Task. Once the background processes are cleared, try opening the client again.

If that fails, your firewall might be the culprit. Windows Defender or third-party antivirus programs sometimes flag League updates as threats. You should add the Riot Games folder as an exception in your security settings to prevent this. Another quick fix is to right-click the League of Legends shortcut and select Run as Administrator. This gives the game the necessary permissions to access files it might be struggling to reach.

Lastly, make sure your graphics drivers are up to date. An outdated GPU driver can prevent the game engine from initializing, leaving you stuck on the desktop.

How to Repair League of Legends

When you start seeing bug splats or missing textures, your game files are likely corrupted. Instead of deleting the whole game and starting over, you can use the built-in repair tool. This tool scans your installation for broken files and replaces them automatically.

1. Open the Riot Client (do not launch League itself).
2. Click the Profile Icon in the top right corner.
3. Select Settings from the menu.
4. Click on League of Legends in the sidebar.
5. Find the Repair button and click it.

The process can take anywhere from a few minutes to half an hour depending on your disk speed and how many files are damaged. If the basic repair does not work, you can download the Riot Repair Tool from the official Riot support site. This is a more advanced diagnostic tool that can force-repatch the game and check your firewall settings for you.

How to move league of legends to another drive

As League of Legends grows with more skins and high-definition assets, it takes up more space. If your C: drive is full, you might want to move it to a faster SSD or a larger secondary drive.

Riot has made this relatively simple. You can copy the entire Riot Games folder and paste it into your new drive. Once the files are moved, open the Riot Client and go to the settings for League of Legends. Look for the Game Install Path and point it to the new location. The client will verify the files, and you will be ready to play without a fresh download.

Moving the game to an SSD is highly recommended in 2026. It significantly reduces loading times and can even help with stuttering during matches where many assets are being loaded at once.

FAQ

how to make league of legends full screen

You can quickly switch to full screen by pressing Alt + Enter while in a match. Alternatively, go to the Video settings in the Escape menu and select Full Screen from the Window Mode dropdown.

why is my league of legends not opening

This is usually caused by a frozen process in the background. Open your Task Manager and end all Riot and League related tasks before trying to launch the game again as an administrator.