Secure Boot Not Enabled in Windows 11: A Solution for Valorant Vanguard Errors

Enabling Secure Boot is the primary fix for Valorant’s Vanguard anti-cheat errors on Windows 11. This security feature ensures that your system only runs trusted software during the boot process, which Vanguard requires to prevent unauthorized modifications. If you encounter error codes like 0x80070005 or specific Vanguard installation failures, verifying and activating this setting in your UEFI firmware will likely resolve the conflict.

Understanding Secure Boot and Vanguard

Riot Games’ Vanguard operates at the kernel level to maintain fair play in Valorant. It strictly demands a modern, secure boot environment to function correctly. Without Secure Boot enabled, the operating system cannot guarantee that the bootloader has not been tampered with by malware or unauthorized drivers. Consequently, Vanguard refuses to initialize, leading to launch failures or immediate disconnections from matches. While many users assume Secure Boot is always on in Windows 11, it can be disabled inadvertently during hardware changes, BIOS updates, or when switching between operating systems. Checking this setting is often more effective than reinstalling the game itself, as the issue lies in the firmware configuration rather than the game files. For broader context on resolving complex gaming launch issues, you might also find Fix: Windows Can't Access Specified Device Path for Game Steam | Epic Games useful if you are dealing with related permission errors.

Checking Current Status in Windows

Before entering the BIOS, you should verify whether Secure Boot is already active within Windows. This step saves time if the feature is already enabled but corrupted, or if you need to confirm your current state.

1. Press Win + R to open the Run dialog.
2. Type msinfo32 and press Enter to launch System Information.
3. Locate the Boot Mode entry. It must read UEFI. If it says Legacy, Secure Boot cannot be enabled until you convert your disk partition style.
4. Scroll down to find Secure Boot State. If it says Off, you must proceed to the next section.

If the status is Off, do not attempt to toggle it in Windows Settings immediately. The actual control resides in your motherboard’s firmware interface. Modern Windows versions provide a streamlined way to reboot directly into this interface without guessing key combinations.

Accessing UEFI Firmware Settings

Navigating to the BIOS/UEFI menu varies slightly depending on your motherboard manufacturer (ASUS, MSI, Gigabyte, etc.), but the path through Windows is consistent. This method bypasses fast startup issues that might prevent you from hitting the F2 or Del key during boot.

1. Open Settings and navigate to System > Recovery.
2. Under Advanced startup, click Restart now.
3. Your PC will restart to a blue menu screen. Select Troubleshoot.
4. Choose Advanced options > UEFI Firmware Settings.
5. Click Restart to enter your BIOS/UEFI interface.

Once inside the firmware utility, look for a tab labeled Security, Boot, or Authentication. The exact location depends on your vendor. Use the arrow keys to navigate, as mouse support may be limited in older BIOS versions. You are looking for an option explicitly named Secure Boot.

Enabling Secure Boot Correctly

Changing this setting requires caution. Simply toggling Secure Boot to Enabled may fail if other prerequisites are not met. Most modern motherboards require CSM (Compatibility Support Module) to be disabled first. CSM allows legacy boot methods, which conflicts with the strict integrity checks of Secure Boot.

1. If available, set CSM to Disabled. Save changes and reboot if prompted, then return to BIOS.
2. Set Secure Boot to Enabled.
3. Some systems require installing platform keys. Look for an option like Install Default Secure Boot Keys or Reset to Setup Mode if Secure Boot remains locked.
4. Save your changes (usually F10) and exit.

After the reboot, log back into Windows and check msinfo32 again. The Secure Boot State should now read On. Launch Valorant to see if Vanguard initializes successfully. If you still face issues, ensure that no third-party antivirus software is interfering with kernel-level access, as discussed in similar troubleshooting guides for PC Crashes: Game Closes Unexpectedly During Stress Tests on Windows.

Troubleshooting Common Errors

Even after enabling Secure Boot, some users report persistent Vanguard errors. This is often due to residual driver states or incorrect TPM configurations. Vanguard also relies on Trusted Platform Module (TPM) 2.0. Ensure TPM is enabled in the same BIOS section where you adjusted Secure Boot. If the game still fails, try uninstalling Vanguard manually via the Riot Client settings, then repair the game client. In rare cases, a full reset of NVRAM (Clear CMOS) may be necessary if conflicting keys were installed previously. Always backup your data before making deep firmware changes. Remember that changing boot modes can affect dual-boot setups; if you use Linux, ensure its bootloader supports UEFI Secure Boot signing.

Frequently Asked Questions

Can I enable Secure Boot if my drive is MBR?

No, Secure Boot requires the disk to use the GPT partition style. You must convert your drive from MBR to GPT using the built-in mbr2gpt tool in Windows before enabling the feature. Never use third-party conversion tools that claim to alter filesystem structures directly, as they can cause data loss.

Does enabling Secure Boot improve FPS in Valorant?

No, Secure Boot is a security measure and does not impact performance metrics like frame rates. Its only role is to validate the integrity of the boot chain and prevent unauthorized kernel drivers from loading, which is mandatory for Vanguard to operate.

Why does Vanguard still fail after enabling Secure Boot?

This often happens if CSM is still enabled in the BIOS, or if TPM 2.0 is disabled. Additionally, outdated chipset drivers can interfere with Vanguard’s ability to communicate with the OS. Update your motherboard drivers and ensure both TPM and Secure Boot are active.

Is Secure Boot required for other anti-cheats?

Yes, most modern kernel-level anti-cheats such as Easy Anti-Cheat and BattlEye increasingly require Secure Boot. While some older titles may not enforce it, relying on games that do not requires a secure environment is becoming risky as security standards evolve across the industry.

How do I know if my motherboard supports Secure Boot?

All motherboards manufactured after 2012 generally support UEFI Secure Boot. Check your manufacturer’s specifications page for "UEFI Secure Boot" support. If your BIOS interface lacks the option entirely, your hardware may be too old to run Windows 11 or modern Vanguard securely.