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The error code VAN9003 indicates that Secure Boot needs to be enabled on your system for Vanguard to run. Here's how you can enable Secure Boot:
1. Check Your BIOS Mode: Before enabling Secure Boot, make sure your system is using UEFI instead of Legacy BIOS. Enabling Secure Boot on a Legacy BIOS system can render your Windows unbootable.
- Open the Run dialog by pressing
- Open the Run dialog by pressing
Win + R.
- Type msinfo32 and press Enter.
- In the System Information window, check if the BIOS Mode is UEFI.
2. Enable Secure Boot:
- Restart your computer and enter the BIOS setup (usually by pressing F2, F10, F12, or DEL during startup).
- Navigate to the Boot or Security tab.
- Find the Secure Boot option and set it to Enabled.
- Save and exit the BIOS setup.
3. Restart and Run VALORANT: After enabling Secure Boot, restart your PC and try launching VALORANT again.
For more detailed instructions, check this support article and this one for Windows 11.
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