BUG REPORT – EasyAntiCheat_EOS.sys Kernel Scan Loop
Game
Apex Legends
Anti-Cheat
Easy Anti-Cheat (EOS)
Platform
- Windows 10 22H2 (same behavior previously observed on Windows 11)
- Issue persists even after clean OS installation
Problem Description
While Apex Legends is running, the kernel driver easyanticheat_eos.sys performs continuous scanning without stopping.
This causes persistent high CPU usage through kernel components such as:
- ntoskrnl.exe
- Wdf01000.sys
- occasionally dxgkrnl.sys
CPU usage immediately returns to normal as soon as the game is closed.
Critical Comparison (Important)
On the same system, with the same OS and hardware:
- Fortnite – had the same issue before, later fixed
- VRChat – had the same issue before, later fixed
- Apex Legends – issue still persists
This strongly indicates:
- Not a hardware problem
- Not an OS or GPU driver issue
- Apex-specific Easy Anti-Cheat EOS module / policy regression
Attempted Fixes (No Effect)
- Windows 11 → Windows 10 downgrade
- Multiple NVIDIA GPU driver versions
- Memory Integrity / VBS / Hyper-V disabled
- Easy Anti-Cheat reinstall
- All overlays and third-party tools disabled
Possible Cause (Hypothesis)
The Apex Legends-specific Easy Anti-Cheat EOS game module may be causing a kernel callback loop, particularly on older CPU architectures.
