Fix every FACEIT Anti-Cheat error.

FACEIT AC shows “Please enable Secure Boot” — often after a Windows reinstall, hardware swap or BIOS reset.

“Secure Boot: Enabled” in BIOS is not the same as it being active. It only truly works in UEFI mode with GPT disks, and often needs its keys re-written.

1. Win+R → msinfo32. Confirm BIOS Mode = UEFI (if Legacy — see “The foundation” and stop here).
2. Reboot → Del/F2 → Security tab (or Boot).
3. New BIOS (2022+): Secure Boot = Enabled, Secure Boot Mode = Standard. Often enough.
4. Still asking at “Enabled”: set Secure Boot → Disabled, then Secure Boot Mode → Custom (lets you re-write keys).
5. Key Management → “Restore Factory Keys” / “Install default keys” (if active) → confirm.
6. Set Secure Boot back to Enabled (Standard). Save (F10) & exit.
7. Reboot → msinfo32 again: Secure Boot State should now read On.

• MSI Settings → Advanced → Windows OS Configuration → Secure Boot. Доп. параметр Secure Boot Preset / hardware OS → Maximum Security.
• ASUS Boot → Secure Boot → OS Type → «Windows UEFI Mode» (+ Key Management → Clear/Restore Keys).
• Gigabyte BIOS → Secure Boot → Secure Boot Enable + Secure Boot Mode → Standard/Custom.

“Please enable TPM 2.0” or “TPM attestation failed”. The AC won’t start without TPM 2.0.

TPM 2.0 is a security module on most modern boards. FACEIT AC will not start without it. Intel exposes it as PTT; AMD as fTPM.

1. Win+R → tpm.msc (maximize the window). “The TPM is ready for use” + version 2.0 → already on.
2. “Compatible TPM cannot be found” → it’s off in BIOS. Reboot → Del/F2 → Advanced or Security.
3. Intel: enable “Intel Platform Trust Technology (PTT)”.
4. AMD: enable “AMD fTPM” / “Security Device Support” → AMD CPU fTPM.
5. Sometimes a simple off → reboot → on of the module helps.
6. Save, reboot, re-check tpm.msc.

• Intel Advanced / Security → Intel Platform Trust Technology (PTT) → Enabled.
• AMD Advanced / Security → AMD fTPM switch → AMD CPU fTPM (или Security Device Support → Enabled).

“System is missing important Windows security updates”. Needs Windows 11 23H2+.

FACEIT AC requires up-to-date Windows security protocols. It needs Windows 11 23H2 or newer — Windows 10 support has ended.

1. Open Windows Update and install every available security update.
2. On Windows 10: upgrade to 11, or clean-install 11 from USB.
3. On Windows 11 with no updates showing: run PC Health Check, then Windows 11 Installation Assistant → Start.
4. If updates keep failing or you re-installed several times this year, check you are not stripping Windows Defender during “optimization”.
5. Last resort: clean install of an official Windows image, then update via Windows Update.

“Please enable Memory Integrity / Core Isolation”.

A Core Isolation feature FACEIT may require at higher trust. It depends on Secure Boot and virtualization being on too.

1. Search “Core isolation” → Windows Security → turn on Memory Integrity → reboot.
2. If it errors despite being on, enable SVM/VT-x and Secure Boot in BIOS — they are linked.
3. If Windows Security is broken/won’t open (debloated Windows), reinstall an official Windows image.

“Please enable virtualization” (Intel VT-x / AMD SVM).

CPU virtualization must be on in BIOS, and sometimes in Windows too.

1. BIOS → Advanced → CPU Configuration.
2. AMD: enable “SVM Mode” / “SVM” / “AMD-V”.
3. Intel: enable “Intel Virtualization Technology” / “VT-x”.
4. Save & reboot.
5. If Windows still reports it off, enable virtualization in Windows features too.

• MSI OS Settings → CPU Features (или просто Advanced).
• Gigabyte Tweaker → Advanced CPU Settings → SVM Mode / VT-x.
• ASUS / Intel Advanced → CPU Configuration → Intel Virtualization Technology.

“Please enable IOMMU”. Usually for players at ~2000 ELO+.

Usually required for players at ~2000 ELO+. AMD calls it IOMMU; Intel calls it VT-d.

1. Update your BIOS first.
2. AMD: Advanced → AMD CBS → NBIO Common Options → enable IOMMU.
3. Intel: enable “VT-d” (Advanced → System Agent / PCI subsystem / CPU config).
4. Some boards also need “Kernel DMA Protection” enabled. Save & reboot.

• AMD (MSI) Advanced → AMD CBS → NBIO Common Options → IOMMU (или OC → CPU Common Options).
• AMD (ASUS/Gigabyte) AMD CBS → NBIO, либо System Agent (SA) Configuration.
• Intel Advanced → System Agent (SA) Configuration / PCI Subsystem / CPU Config → VT-d → Enabled.

“Enable NX / Execute Disable Bit / DEP”.

Data Execution Prevention must be active at CPU and Windows level.

1. BIOS → Advanced → CPU Configuration → set “NX Mode” / “Execute Disable Bit” / “XD Bit” to Enabled.
2. Windows: System → Advanced system settings → Performance → Data Execution Prevention → turn on DEP for all programs and services.
3. Reboot and re-check.

“You need to disable test signing to launch FACEIT AC”.

Windows is in test-signing mode, usually after safe-mode boots or third-party “optimizer” driver testing.

1. Open an elevated Command Prompt (Run as administrator).
2. Run: bcdedit /set testsigning off
3. Reboot.

“The service cannot be started”.

The FACEIT AC service was disabled — often by an “optimizer” that touched services or the registry.

1. Win+R → services.msc.
2. Find every FACEIT-related service and set Startup type to Automatic, then Start it.
3. If it still fails, reinstall the FACEIT AC client.

A specific .sys driver name is named as forbidden/blocked (HWiNFO, storage or sound drivers).

A driver with an outdated/vulnerable signature is loaded — common with monitoring tools (HWiNFO) and storage/sound drivers.

1. For storage controllers: Device Manager → find the SSD/HDD controller → Update driver → pick the standard Microsoft driver.
2. For monitoring .sys files (e.g. HWiNFO): remove the tool from startup (e.g. via Autoruns), reboot, then delete the file.
3. For external sound cards/peripherals: update the driver from the official vendor site.

A “Fatal error” with a numeric code, or “Memory corruption detected”.

These are mostly hardware/driver/Windows-integrity issues. The fix depends on the code.

1. Error 23 — update your BIOS.
2. Errors 78/79 — test hardware: RAM with MemTest, CPU with Prime95. Often too-tight RAM timings or unstable OC.
3. Error 95 — remove the “secret” folder if present; update ASUS Armoury Crate.
4. Error 99 — bad sectors / pagefile issue — check your SSD/HDD.
5. Error 100 — an overlay/recording app is hooking the game — close capture/analytics overlays.
6. Error 115 — possible rootkit — scan with an anti-rootkit tool (e.g. Malwarebytes Anti-Rootkit).
7. Error 122 — file/disk corruption or driver conflict — see “Forbidden driver” above.
8. Error 126 — a critical Windows component is missing/corrupt — repair, then reinstall Windows if needed.
9. Memory corruption detected — reset any RAM overclock to default; test RAM (TestMem5 / Karhu).

FACEIT AC restarts over and over and never finishes loading.

FACEIT AC cannot verify your hardware config or fetch its files — usually network/VPN/ISP related.

1. Keep clicking Restart until it loads.
2. Disable any VPN, reboot your router, and try again.
3. If you are in a region with FACEIT connectivity issues, a stable connection / region change often fixes it.

“You need the anti-cheat client running to connect”, even though it is running.

Usually a mismatch between the Steam account in CS2 and the one linked to your FACEIT profile.