WRC BSOD: eaanticheat.sys – 0x7F DOUBLE_FAULT – never launched on PC
EA SPORTS WRC has never successfully launched on this PC. The game was purchased through the Epic Games Store.
Every attempt to launch WRC results in a Windows kernel BSOD involving EA Javelin AntiCheat / eaanticheat.sys.
SYSTEM:
Lenovo Legion 7 16IAX10 (83KY)
Windows 11 Home 25H2, build 26200.9445
Intel Core Ultra 9 275HX
NVIDIA GeForce RTX 5070 Laptop GPU 8 GB
32 GB RAM
BIOS: Lenovo RXCN78WW
CPU microcode: 0x121
CRASH:
BugCheck: UNEXPECTED_KERNEL_MODE_TRAP (0x7F)
Arg1: 0x8 – EXCEPTION_DOUBLE_FAULT
Process: EAAntiCheat.GameService.exe
Module: eaanticheat.sys
EA AntiCheat image version: 1.0.33258.0
Failure bucket: 0x7f_8_eaanticheat!unknown_function
I now have TWO independent usable Windows crash dumps from separate WRC launch attempts.
Both reproduce the same fault at the exact same EA AntiCheat offset:
eaanticheat+0x1766a24
The failing instruction is:
mov qword ptr [rsp+68h],rax
In both dumps, the trap frame contains a kernel stack pointer far outside the valid stack range of the EAAntiCheat.GameService.exe thread.
Latest dump:
Valid thread stack:
Limit: ffff860f`eebb9000
Base: ffff860f`eebc0000
Current: ffff860f`eebbd790
Fault RSP:
ffff860f`ffffffff
CR2:
ffff860f`ffffffe8
!pte on CR2 reports the address as NOT VALID.
The earlier independent dump shows the same pattern:
Fault offset: eaanticheat+0x1766a24
Fault RSP: ffffb801`ffffffff
CR2: ffffb801`ffffffe8
!pte: not valid
Therefore the failure is highly deterministic and reproducible in the EA AntiCheat execution path.
I am NOT claiming that eaanticheat.sys must necessarily be the first component that corrupts the stack pointer, because the double-fault trap frame may already represent corrupted processor/stack state. However, two independent crashes reaching the exact same eaanticheat.sys offset with the same invalid-stack pattern strongly justify investigation by the EA Javelin AntiCheat engineering team.
TARGETED DRIVER VERIFIER TEST:
I also tested Windows Driver Verifier specifically against eaanticheat.sys using:
- Special Pool
- Force IRQL checking
- Pool Tracking
WRC immediately reproduced the same visible:
UNEXPECTED_KERNEL_MODE_TRAP (0x7F)
What failed: eaanticheat.sys
Verifier did not produce an earlier/different verifier-specific bugcheck. Driver Verifier has since been fully disabled and verified as OFF.
TROUBLESHOOTING ALREADY COMPLETED:
- Full EA AntiCheat removal/reinstall
- Full WRC deletion and clean reinstall through Epic Games Store
- Game installed again to default location
- EA AntiCheat files checked: Authenticode signatures are VALID and signed by Electronic Arts, Inc.
- Windows 11 repair reinstall of the current 25H2 installation while preserving apps/files/settings
- Windows Memory Integrity tested OFF + reboot; same BSOD; restored ON
- Hypervisor tested OFF + reboot; same BSOD; restored to AUTO
- NVIDIA / system drivers checked
- BIOS and CPU microcode checked
- Third-party filter/service isolation performed
- Nahimic isolated
- DAEMON Tools drivers isolated
- Logitech joystick/G29-related drivers isolated; G29 physically disconnected
- Lenovo SmartConnect / SmartEngine components isolated
- SENetFilter completely removed and confirmed absent; WRC still produced the same BSOD
- steamxbox driver isolated
- RFDriveFs2 isolated
- lenovoDriverBus isolated
- No relevant third-party AV/VPN/EDR filter identified
- Code Integrity logs checked; no blocked/unsigned driver failure corresponding to the crash
- Storage/NTFS logs checked; no corresponding disk/storage failure
- Windows crash-dump configuration repaired after earlier dump-writing failures
The latest WRC crash successfully produced a completed kernel bitmap dump at 100%.
Approximately 30 system restarts have occurred during this investigation, including planned troubleshooting reboots and BSOD-induced reboots.
Conservatively, I estimate that more than 10 hours of active troubleshooting have been spent on this issue, excluding breaks and waiting time between tests.
At this point I do not believe another generic reinstall, clean boot, Secure Boot toggle, Memory Integrity toggle, Windows repair, or similar first-line troubleshooting cycle is appropriate. These steps and significantly deeper kernel-level diagnostics have already been performed.
REQUEST:
Please escalate this report to the EA Javelin AntiCheat technical/engineering team.
I would specifically like EA to investigate the reproducible eaanticheat.sys execution path at offset +0x1766a24 and whether there is a known compatibility issue involving this platform, particularly the Intel Core Ultra 9 275HX / Windows 11 25H2 environment.
I can provide:
- WinDbg output from both independent dumps
- BSOD screenshots
- minidump
- system information
- driver/service inventory
- Code Integrity logs
- additional diagnostic information requested by EA engineering
The full latest kernel dump is approximately 2.9 GB, so it cannot be attached directly to this forum post, but I can provide relevant WinDbg analysis and smaller diagnostic files.
Because the game has never successfully launched on this PC despite extensive troubleshooting, I would also appreciate guidance regarding the purchase through Epic Games Store and any available resolution/refund path if EA cannot provide a technical fix.
Thank you.