Riot Games is updating its Vanguard anti-cheat system to an "on-demand" model, which will only activate during gameplay and stop once the game ends. This change addresses concerns over Vanguard's previous persistent background operation and kernel mode access. Players must meet specific security criteria to use the new feature, including enabling pre-boot security mechanisms and Windows' native protection features. Approximately 35% of players already meet these conditions, while 3% using older hardware will not have access to the on-demand option until they upgrade. Vanguard will continue its current operation for those unable to meet the requirements. The update is influenced by advancements in Windows and PC hardware security and aims to enhance anti-cheat measures while keeping the process optional for most players.