Are you getting the 0xc0000005 error when trying to open League of Legends?
I understand how frustrating this can be - I've dealt with this error before and found many working solutions.
This error appears right after you try to log in through the Riot Client.
You'll see a popup with the error code, and the client will close automatically. While this is a Windows-related error rather than a Riot Games issue, I can help you fix it.
Let's start with the simplest solution: running League of Legends as administrator.
Simply right-click the League of Legends shortcut and select "Run as administrator." Try launching the game to see if this fixes the error.
If running as administrator doesn't work, you'll need to perform a clean reinstall. Open your Control Panel and go to Programs and Features.
Uninstall League of Legends completely, then delete any remaining League folders on your computer.
Next, download a fresh copy from the Riot Games website and install the game.
Another solution is updating Windows.
Open your Windows Settings and navigate to Update & Security. Check for any available updates and install them. After installation, restart your computer and try launching League again.
Your antivirus might also cause this error.
Open your antivirus software and add League of Legends to the exceptions list. You can also try temporarily disabling real-time protection to test if this resolves the issue.
Before trying these solutions, I recommend saving your custom game settings since you might need to set them up again, especially if you need to reinstall the game.
If you've tried all these solutions and still encounter the 0xc0000005 error, contact Riot Support directly. They can examine your specific case and provide additional help.
From my experience, most players successfully fix this error either by running the game as administrator or performing a clean reinstall.
