How to Fix “Sorry we’ve detected a problem with your installation” in League of Legends

Are you getting a “Sorry we’ve detected a problem with your installation” error in League of Legends?

Here’s the second part of the error, “We will not attempt to repair the attached files”.

The error message is usually caused after the Champion Select screen.

After the Champion Select screen, the game will crash and the client will go on a repair loop.

In this guide, you’ll learn how to fix “Sorry! We’ve detected a problem with your installation” in League of Legends (LoL).

How to fix “Sorry we’ve detected a problem with your installation” in League of Legends

To fix “Sorry we’ve detected a problem with your installation” in League of Legends, you need to change the game’s compatibility settings.

You can also try using the Hextech Repair Tool or resettingn the game without deleting it.

Right-click “League of Legends” and select “Open file location”.
Select the “Riot Games” directory on the URL field.
Open the “League of Legends” folder and open the “Game” folder.
Right-click “League of Legends.exe” and select “Properties”.
Select “Compatibility” and tick “Run this program in compatibility mode for Windows 8”.
Tick “Disable fullscreen optimizations”, select “Apply”, and select “OK”.

Note: If “Run this program in compatibility mode for Windows 8” is already ticked, untick it.

Download the Hextech Repair Tool: https://support-leagueoflegends.riotgames.com/hc/en-us/articles/224826367-Automated-Troubleshooting-Hextech-Repair-Tool.
Open the tool and select “Run”.
Tick “Force repatch” and tick “Reinstall”.
Select “Start”, wait for a while, and select “Okay”.

Note: If you get the “Install Path Not Found” error, select “Okay”, and select the “LeagueClient.exe” app.

Right-click “League of Legends” and select “Open file location”.
Select the “Riot Games” directory on the URL field.
Rename the “League of Legends” folder to “League of Legends 1”.
Launch League of Legends and select “Install”.
Select “Already installed?”, select the “League of Legends 1” folder, and select “OK”.