How to fix Riot Vanguard encountered an error in Valorant

Valorant players frequently encounter system interruptions during game initialization, primarily caused by Vanguard’s rigorous security protocols. This advanced anti-cheat system employs deep kernel-level monitoring that occasionally misinterprets legitimate software as potential threats.

The “Riot Vanguard has encountered an error” notification represents one of the most prevalent startup failures in Valorant. Typically, this occurs when the anti-cheat mechanism identifies third-party applications that might compromise game integrity. However, numerous instances involve incorrect flagging of harmless programs. Vanguard’s detection algorithms frequently categorize ad-blocking extensions and security suites as malicious entities, resulting in operational disruptions.

Resolving these security conflicts requires methodical troubleshooting approaches that address both software compatibility and system configuration issues.

Fixes for Riot Vanguard encountered an error in Valorant

Implementing these systematic approaches ensures secure Valorant launches while maintaining Vanguard’s protective functions.

Restart Valorant and system

As previously indicated, many Vanguard errors represent transient false positives resolvable through application and system recycling. Initiate troubleshooting by terminating Valorant processes via Task Manager, progressing to complete system restart if initial attempts prove insufficient.

To properly restart Valorant, simultaneously press CTRL+ALT+DELETE and select Task Manager from the security options screen. Within the processes tab, locate all entries beginning with V and systematically terminate each Vanguard and Valorant-related process. Subsequently, relaunch both Vanguard and Valorant executables with administrator privileges. This procedure typically resolves temporary configuration conflicts. If persistent errors continue, execute a full computer restart to clear system memory caches and refresh security handshakes.

Pro Tip: Many players overlook running both Vanguard AND Valorant as administrator. This dual administrative execution ensures proper permission inheritance throughout the security chain.

Enable TPM 2.0 and secure boot

In persistent cases where conventional solutions prove ineffective, implementing TPM 2.0 and secure boot configurations becomes necessary. Follow this comprehensive implementation guide:

Before activating TPM 2.0 functionality, thoroughly verify your computer hardware compatibility specifications. While most contemporary systems support TPM 2.0 standards, confirmation through BIOS/UEFI interface inspection or motherboard documentation review prevents configuration mismatches.

1. Access BIOS/UEFI Settings: To configure TPM 2.0, access your computer’s firmware settings during the initial boot sequence. The specific methodology varies according to motherboard manufacturers and laptop brands. Generally, repeatedly pressing designated keys (including Delete, F2, F10, or F12) during system startup grants entry to BIOS/UEFI configuration environment.
2. Locate TPM Settings: Once inside the firmware interface, navigate to the Trusted Platform Module configuration section. The precise terminology and hierarchical location differs significantly across hardware vendors and firmware versions.
3. Enable TPM 2.0: Within the TPM configuration panel, locate the activation toggle option. Engage the TPM functionality and preserve modifications within the BIOS/UEFI settings framework.
4. Reboot your Computer: Following TPM 2.0 activation, commit configuration changes and exit the firmware interface. Your system will automatically restart to implement the new security parameters.
5. Check Vanguard and Valorant: After system reinitialization, launch the Valorant gaming application to verify resolution of TPM 2.0 related Vanguard error messages.

Critical Note: TPM configuration represents an advanced system modification. Incorrect settings might affect other security-dependent applications. Always document original configurations before implementing changes.

Other ways to fix the Riot Vanguard error

Before implementing secure boot protocols, consider comprehensive uninstallation and reinstallation of both Vanguard and potentially Valorant itself. This clean installation methodology resolves the majority of persistent Riot Vanguard error instances through configuration reset.

Ensure complete deactivation of all third-party applications, particularly security suites and system optimization tools, to eliminate false positive triggers. Additionally, systematically update all graphics processing unit drivers before initiating Valorant sessions to prevent hardware compatibility conflicts.

Advanced Resolution Strategy: Implement a systematic software conflict identification process by temporarily disabling non-essential startup applications. For comprehensive gaming optimization, consult our Complete Guide to system optimization for competitive gameplay.

Common Mistake Avoidance: Many players attempt complex BIOS modifications before addressing simple software conflicts. Always follow the troubleshooting hierarchy: software conflicts first, driver updates second, system configuration third.

For weapon-specific configurations that might interact with security systems, reference our detailed Weapons Unlock guide for compatibility insights. Additionally, understanding class-specific interactions through our Class Guide provides additional context for system resource allocation.

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