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The error message "VAN9003" you're encountering indicates that Vanguard, the anti-cheat software required for VALORANT, requires Secure Boot to be enabled. Secure Boot is a security standard developed to ensure that a device boots using only software that is trusted by the Original Equipment Manufacturer (OEM).
To resolve this issue, you'll need to enable Secure Boot in your system's BIOS settings. Here's a general guide on how to do it:
1. Restart your computer and enter the BIOS/UEFI firmware settings. This is usually done by pressing a specific key (like Del, F2, F10, or Esc) during the boot process.
2. Locate the Secure Boot setting. This is typically found under the Security, Boot, or Authentication tab.
3. Enable Secure Boot. Make sure it is set to 'Enabled'.
4. Save changes and exit the BIOS. Your system will restart.
Important: Before enabling Secure Boot, ensure your system is using UEFI mode, not Legacy BIOS. Enabling Secure Boot on a system configured with Legacy BIOS can render your Windows installation unbootable.
For specific instructions based on your motherboard or laptop model, refer to the manufacturer's support documentation.
For further details, you can check the Riot Games support articles here.
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