
You can completely uninstall League of Legends using standard Windows tools or the Riot Client. However, after a standard uninstallation, Vanguard, the Riot Client, and temporary game files may remain on your computer. In this article, we’ll explain how to completely uninstall League of Legends from your computer and clear any remaining data.

The easiest way is to use the “Apps & Features” menu in Windows.
After that, the game will be removed from your computer, but the Riot Client and Vanguard may remain installed.
If you want to completely clean up your system and don’t plan to play Valorant or other Riot games, then after uninstalling the game, also uninstall:
You can also try third-party programs if you don’t want to clean up manually:
After using these programs, restart your PC to complete the system cleanup.
If you want to delete not only the game but also your account, you cannot do this through the client. Log in to your Riot Games account.
After submitting your request, a one-month waiting period begins. If you do not cancel the deletion during this time, your account will be permanently deleted and cannot be recovered. Along with it, your progress in all Riot Games titles—including Valorant, Teamfight Tactics, Legends of Runeterra, and other titles linked to this account. If you plan to play anything other than League of Legends, it’s best to keep your account and simply delete the game.
There is no separate button in the Riot Client to uninstall the game. The client is used only to launch, update, and install Riot Games titles. To uninstall the game, you’ll need to use standard Windows programs.
If the game won’t uninstall, close the Riot Client via Task Manager and end the RiotClientServices.exe process. Also, make sure Vanguard isn’t running. After that, try uninstalling again. If the problem persists, restart your computer and try again.