If you're having issues running a game from the Riot Client (League of Legends, VALORANT, Teamfight Tactics, or Legends of Runeterra), our automatic repair tool might resolve the issue by repairing missing or corrupted files.
Log into the Riot Client
Click the Profile Icon in the upper right corner
Select Settings
Choose the game you'd like to repair
Select the Repair button and follow the prompts
If the repair tool fails, we have a few more steps you can take.