Battlefield 6 Wont Launch — EAAntiCheatService and 0xC0000005 Error

Possible Solution / Root Cause Identified - Cannot confirm as I refunded

After extensive troubleshooting, the issue causing Battlefield 6 to crash at splash screen with error bf6.exe – 0xc0000604 has been possibly identified.

- Root Cause

The crash is triggered by EA Javelin AntiCheat (EAAntiCheatService) failing to initialize.
On Windows 11 Insider Preview builds 24H2 and 25H2 (Build 26200.x and related), the service either:
Remains stuck in START_PENDING, or
Exits with Error 87 (The parameter is incorrect).
No logs are created in C:\ProgramData\EA or C:\Program Files\EA\AC.
This confirms an incompatibility between EA Javelin AntiCheat and newer Insider builds of Windows 11 (24H2 and 25H2).

- Important Note

This is not a player hardware issue.
Secure Boot and TPM 2.0 confirmed enabled and working.
Fresh Windows reinstall and game reinstalls tested (Steam + EA App).
System Diagnostics Report shows no driver or OS errors.
Other anticheat solutions (EAC, BattlEye, Vanguard) work fine on the same Windows builds.

- Workarounds

Roll back to the latest stable Windows build (23H2, Build 22631.x)
This version is supported and Battlefield 6 should launch normally.
Insider builds (24H2, 25H2) are not guaranteed compatible until EA updates Javelin.

Stay on 24H2/25H2 and wait for an EA patch
If you rely on Insider builds, you’ll need to wait for EA to update Javelin AntiCheat to support them.
EA has not yet confirmed official support.

So lame. I spent at least 12-15 hours reinstalling, rebooting, changing settings and I was about to just get a refund. I hope you all get it working somehow. 

all of you have secureboot  enable (on) and also (active)?

Yep, the same ones.

me too

Is the same error being produced? 

I have tried updating my bios, unfortunately that did not work. Thank you though.

I fixed this issue. Update your bios. I tried everything and once I updated the bios I have had no problems playing the game. I hope it works for you all. Good luck. 

Same here, I've tried everything too and so far nothing, EA said they are investigating and will soon provide a solution but I believe that not even they know why. Let's wait for a patch or some guru lol

Same issue here, i wouldn't hold my breath, EA has yet to even acknowledge the fact that this is an issue, 'nor is there any way to fix it.

Used to be ways to force the anti-cheat to update but i cannot find anywhere to do so. Good luck getting into the game. Maybe some guru will have the answer i hope. For both of us.