Valorant Game Error Code VAN 9003: How to Fix It

Medium 10-15 minutes High Severity Verified June 2026
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Error Code
VAN 9003
Brand
Valorant
Product Type
game
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
10-15 minutes
Valorant error code VAN 9003 occurs when the game's Vanguard anti-cheat system detects that Secure Boot is disabled in your computer's BIOS settings. This security feature must be enabled for Valorant to run properly and prevent cheating software from loading before the operating system starts.
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Tools You'll Need

How to Fix Error Code VAN 9003

  1. Restart your computer and enter BIOS

    Making incorrect changes in BIOS can prevent your computer from starting properly. Only change the Secure Boot setting and avoid modifying other options unless you understand their purpose.

  2. Navigate to the Security or Boot section

  3. Enable Secure Boot

    Write down any passwords you create in BIOS. If you forget the supervisor password, you may need to reset the BIOS using jumpers on the motherboard.

  4. Enable TPM if available

  5. Save settings and exit BIOS

  6. Restart Valorant and test

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When to Call a Professional

Contact a computer technician if you're uncomfortable accessing BIOS settings, if your computer won't boot after enabling Secure Boot, or if you forget a supervisor password you set during the process. Some older systems may not support Secure Boot and require hardware upgrades.

Frequently Asked Questions

Why does Valorant require Secure Boot to be enabled?
Valorant's Vanguard anti-cheat system requires Secure Boot to prevent malicious software and cheats from loading before Windows starts. This ensures a more secure gaming environment by verifying that only trusted software runs during the boot process.
Will enabling Secure Boot affect other games or programs?
Enabling Secure Boot generally won't affect most modern games and programs. However, some older software, unsigned drivers, or dual-boot configurations with Linux may be affected. Most users experience no negative impacts from enabling Secure Boot.
What if my computer doesn't have Secure Boot option in BIOS?
Secure Boot requires UEFI firmware and is not available on older computers with legacy BIOS. If your system is from before 2012 or doesn't support UEFI, you may need to upgrade your motherboard or computer to play Valorant.
Can I play Valorant without enabling Secure Boot?
No, Valorant's Vanguard anti-cheat system requires Secure Boot to be enabled. The game will not launch and will display error VAN 9003 until this requirement is met. This is a mandatory security feature that cannot be bypassed.
What should I do if Windows won't boot after enabling Secure Boot?
If Windows fails to boot after enabling Secure Boot, restart your computer, enter BIOS again, and disable Secure Boot temporarily. This usually indicates that Windows wasn't installed in UEFI mode or there are unsigned drivers. You may need to reinstall Windows in UEFI mode or update drivers.

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