Following report surfaced that Riot's Vanguard anti-cheat was apparently soft-bricking certain hardware often used for cheating, Riot has updated Vanguard with a new on-demand mode that allows users to disable the anti-cheat mode from launching on boot. According to a blog post about the update, on-demand mode will only launch Vanguard when it's needed by a game like League of Legends or Valorant. This should theoretically allow for faster boot times and slightly reduced system resource usage on Windows PCs with Vanguard installed. However, Vanguard on-demand mode is only possible in cases wherein player hardware meets a set of security standards that Riot calls a Vanguard Pre-Check.

The Pre-Check, and thus Vanguard On-Demand mode, requires that players are running Windows 11 version 25H2 or newer and enable Secure Boot, TPM 2.0. IOMMU, VBS, and Hypervisor-Protected Code Integrity. All of these security measures basically allow Riot to ensure that no kernel-level cheats have been enabled between when the system booted and when Vanguard was launched. Riot says that around 35% of Vanguard user systems are already in a "secured-core state," meaning they meet all the requirements and will be able to enable On-Demand mode with the next Vanguard update, however, those who have one or more of the aforementioned UEFI settings disabled will have to go through the Pre-Check before being able to enable On-Demand.