Fix Valorant VAN Restriction HVCI Enabled Error

2026-07-04 · Video guide + written steps · By Noah

Valorant is blocking you from playing because your Windows security settings don't meet the requirements for its anti-cheat, Vanguard. The HVCI restriction triggers when Memory Integrity is disabled, which is a core security feature Vanguard requires to operate.

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Why this happens

Vanguard requires Hypervisor-Protected Code Integrity (HVCI) to be active to prevent unauthorized code from running at the kernel level. If your Memory Integrity setting is off, Valorant prevents the game from launching to maintain security.

What you'll need

You need administrative access to your Windows account. If your BIOS settings are required, ensure you have your motherboard manual handy if you are unsure which key opens your BIOS menu.

Steps

01

Press the Windows key, type Core Isolation, and press Enter to open the settings page.
02

Locate the Memory Integrity toggle and flip the switch to On.
03

Allow Windows to perform its internal driver scan once the switch is toggled; do not close the window until it completes.
04

If the toggle is grayed out or shows Page not available, restart your computer and enter your BIOS by tapping Delete, F2, or F10 during startup.
05

Locate the virtualization setting in your BIOS, usually labeled as VT-x for Intel processors or SVM for AMD processors, and set it to Enabled.
06

Save your BIOS changes, exit, and allow the PC to boot back into Windows.
07

Return to the Core Isolation settings and toggle Memory Integrity to On again, then restart your computer one final time to finalize the changes.

Still not working?

If the error persists after enabling Memory Integrity, check your device manager for incompatible drivers that might be blocking the process. Some older peripherals or outdated chipset drivers conflict with HVCI; ensure all your motherboard and GPU drivers are updated to the latest versions from the manufacturer website.

Frequently asked questions

Will enabling Memory Integrity slow down my gaming performance?

For most modern CPUs, the performance impact of Memory Integrity is negligible and will not be noticeable during gameplay.

Is it safe to turn on Memory Integrity?

Yes, it is a built-in Windows security feature that helps protect your system from malicious code, and it is recommended to keep it on for general system security.

Why is my Memory Integrity switch grayed out?

This usually indicates that your CPU does not support virtualization or that it is currently disabled in your BIOS, which prevents the feature from functioning.