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Vanguard's aggressive requirement for Secure Boot, TPM 2.0, and HVCI is the bane of anyone running custom environments, modified Windows, or specific hardware setups. If you're trying to launch the game with these security features disabled, you've likely hit the standard hardware enforcement wall.
Testing has been done on multiple fronts to see if standard spoofing methods can circumvent the check, but Vanguard seems to be pulling state data directly from the firmware level rather than just relying on basic registry or OS-level flags.
Methods that have already failed to bypass the requirement:
The "Kernel Hook" Hypothesis
Since standard hardware spoofing isn't cutting it, the next logical step is looking into kernel-mode hooking. The goal would be to intercept the communication between the Vanguard driver and the game client to suppress the error message or spoof the return value that indicates Secure Boot is disabled. If we can manipulate the driver's reporting while keeping the hardware features off, we might have a viable bypass.
Preventive Troubleshooting:
If you're currently attempting this, remember that Vanguard loads at the EFI level. Any attempt to hook the driver needs to happen early in the boot sequence. Be careful with manual mappers or unsigned drivers here, as Vanguard will flag the boot environment immediately.
Anyone found a permanent way to kill the Secure Boot check in the Vanguard driver?
Testing has been done on multiple fronts to see if standard spoofing methods can circumvent the check, but Vanguard seems to be pulling state data directly from the firmware level rather than just relying on basic registry or OS-level flags.
Methods that have already failed to bypass the requirement:
- Disabling Secure Boot, Intel PTT (TPM), and HVCI manually.
- Spoofing motherboard serials and UUIDs.
- MAC address spoofing (LAN).
- Running Disk RAID 0 setups.
- Full OS formatting and UEFI flashing.
- IP address rotation.
The "Kernel Hook" Hypothesis
Since standard hardware spoofing isn't cutting it, the next logical step is looking into kernel-mode hooking. The goal would be to intercept the communication between the Vanguard driver and the game client to suppress the error message or spoof the return value that indicates Secure Boot is disabled. If we can manipulate the driver's reporting while keeping the hardware features off, we might have a viable bypass.
Interestingly, Cloudflare WARP has been reported to temporarily allow access for some users. This suggests a potential delay or quirk in how the Vanguard heartbeat communicates with the authentication servers regarding hardware state. It’s not a permanent solution, but it’s a lead worth investigating for those digging into the networking side of the AC.
Preventive Troubleshooting:
If you're currently attempting this, remember that Vanguard loads at the EFI level. Any attempt to hook the driver needs to happen early in the boot sequence. Be careful with manual mappers or unsigned drivers here, as Vanguard will flag the boot environment immediately.
Anyone found a permanent way to kill the Secure Boot check in the Vanguard driver?
