"We've detected a problem with your installation" Error

If your game is crashing after Champ Select and shows this error, find League of Legends.exe (or its desktop shortcut), right click to access Properties, select the Compatibility tab, then confirm that "Run this program in compatibility mode" is unchecked. Once you've done then, restart your computer and attempt to join a custom match to confirm it's working. If not, please reach out to us through Player Support

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