If you’ve ever booted up League of Legends for a 2026 ranked grind only to be stuck in a tiny windowed box that cuts off your minimap and champion stats, you’re far from alone. I run into this issue at least once a month, usually after a new client update messes with my saved display settings. Figuring out how do i make league of legends full screen sounds like a super basic task, but hidden client bugs, Windows 11 compatibility quirks, and even monitor refresh rate mismatches can make it way more frustrating than it should be. This guide walks you through every working fix for 2026, from the simple one-click setting to troubleshooting persistent glitches that won’t go away with a standard settings adjustment.
The Simplest 2026 Fix for Full Screen League of Legends (10 Seconds or Less)
Riot updated the LoL client UI in late 2025, so a lot of long-time players can’t find the display setting anymore because it moved from the side navigation bar to the top of the settings menu. I had a friend last week waste 20 minutes scrolling through the gameplay tab looking for it, so don’t feel silly if you missed it too.
First, log into your LoL client first, don’t try to change settings from the pre-login launcher, that’s the most common mistake people make. Once you’re on the home screen, click the small gear icon in the top right corner of the window to open settings. Select the “Video” tab from the top menu, and look for the “Display Mode” dropdown menu. Select “Full Screen” from the list, then click the “Save” button in the bottom right corner. The client will flicker for a second and switch to full screen immediately.
If the Full Screen option is greyed out, or it immediately switches back to windowed mode after you save, that means you’re dealing with a glitch that the basic fix can’t solve. Always save settings before you queue for a match, because changing display settings mid-champ select can crash the client and make you miss your queue, which comes with a ranked penalty if you’re playing competitive.
Troubleshooting Common 2026 Full Screen Glitches That The Basic Fix Won’t Solve
Most of the persistent full screen issues in 2026 come from conflicts between recent Windows updates, Riot’s Vanguard anti-cheat, and old saved config files on your device. Last month after the 14.1 patch, my client kept reverting to windowed mode every time I finished a ranked game, and none of the basic settings changes worked until I tried the fixes below.
If the basic setting fix isn’t working for you, try these proven solutions first:
If you’ve tried all three of these fixes and you’re still having issues, there might be a known widespread bug from the latest client patch. You can check Riot’s official LoL support page for real-time updates on known display issues and expected fix timelines.
Should You Use Full Screen, Borderless Windowed, or Windowed Mode for 2026 LoL?
A lot of players get stuck asking if full screen is even the right choice for their setup, especially if they alt tab frequently to check Discord, stream chat, or queue timers for other games. The answer depends on your hardware and what you’re using LoL for that play session.
Full screen mode gives you the highest possible FPS, because it lets LoL take full control of your display, so no background Windows processes are eating up extra GPU resources. That’s ideal for ranked play, where even 5 extra FPS can make a difference in fast-paced teamfights where you need to react to skill shots in milliseconds. On lower end PCs that barely meet LoL’s 2026 system requirements, full screen can boost your FPS by 15-20% compared to borderless windowed.
Borderless windowed is the better choice if you alt tab a lot, or if you use multiple monitors. There’s no black screen delay when switching between LoL and other apps, which is perfect if you’re chatting with friends while waiting for queue, or managing a stream while you play. If you use multiple monitors, borderless windowed will stop your cursor from accidentally clicking outside the game during matches, which is a super common pain point for full screen users who have a second monitor open for guides or chat.
Regular windowed mode is only useful if you’re actively multitasking while you wait for queue, like doing homework or browsing the web. It’s not recommended for actual gameplay, because it’s the lowest performance option and you’ll have parts of the screen cut off if your window isn’t sized perfectly.
How To Lock Full Screen Mode So It Doesn’t Revert After 2026 Client Updates
One of the most annoying parts of fixing full screen settings is that they often get reset after every bi-weekly client patch, which Riot releases every other Wednesday in 2026. There are a few simple steps you can take to lock your settings so you don’t have to redo this process every two weeks.
First, set your game.cfg file to read-only as we covered in the troubleshooting section earlier. That will stop client updates from overwriting your display settings, even if the patch resets other parts of your client configuration. Second, turn off cross-device setting sync if you play LoL on multiple devices with different monitor sizes. I used to have this issue when I played on my work laptop during travel and my main 1440p desktop at home, and the mismatched resolution settings kept resetting my display mode every time I switched devices.
Never use third party “LoL optimizer” apps that claim to boost your FPS, most of them modify your display settings without your permission, and some even inject files into the client that can get you banned for violating Riot’s terms of service. If you want to optimize your performance, stick to the official in-client settings and the Windows compatibility fixes we covered earlier, which are all approved by Riot and won’t put your account at risk.
If you stream LoL, you’ll be happy to hear that OBS updated its game capture feature in early 2026 to support full screen LoL capture without lag or black screens, so you don’t have to switch to borderless windowed anymore to stream, which is a huge win for competitive streamers who want the extra FPS from full screen mode.
At the end of the day, figuring out how do i make league of legends full screen doesn’t have to take half your play session, even with all the 2026 client and Windows quirks. The basic settings fix works 90% of the time, and the troubleshooting steps we covered will solve almost all the remaining glitches you might run into. Take two minutes to test both full screen and borderless mode to see which works best for your setup, and don’t forget to lock your settings so you don’t have to redo this process after every patch. You’ll be back to climbing ranked or playing ARAM with an unobstructed view before you know it.