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van 9001
Moderate
Valorant · Gaming
Vanguard access denied — the anti-cheat system detected a restricted driver or software running on your system
Quick Answer
Error code VAN 9001 on your Valorant Gaming means: Vanguard access denied — the anti-cheat system detected a restricted driver or software running on your system. This is usually fixable — see the step-by-step guide below.
Likely Causes
  1. A vulnerable or unsigned kernel driver is loaded that Vanguard considers a security risk
  2. Overclocking or hardware monitoring software (MSI Afterburner, HWiNFO) has drivers that conflict with Vanguard
  3. Fan control software like SpeedFan or NZXT CAM loads kernel drivers Vanguard blocks
  4. A cheating tool or injector was detected or left residual files on the system
How to Fix It
1
Restart your computer to unload any conflicting kernel drivers from memory
2
Close and disable hardware monitoring tools: MSI Afterburner, HWiNFO, AIDA64, NZXT CAM, or similar software before launching Valorant
3
Open Device Manager, click View > Show Hidden Devices, and look for any unknown or flagged drivers under System Devices
4
Uninstall any recently installed hardware drivers, fan control utilities, or RGB software that may load kernel-level drivers
5
If the error persists, uninstall Vanguard, restart, run a full antivirus scan, then reinstall Vanguard by launching Valorant
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes
VAN 57VAN 1067VAN 81VAN 185VAN 79
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