F1 25 stuck on "Starting EA Javelin AntiCheat" - eaanticheat.sys never installs

I'm playing F1 25 through Steam.

The game worked fine for about 9 hours yesterday. Now every launch gets stuck on "Starting EA Javelin AntiCheat" and never reaches the game.

I have already:

Reinstalled F1 25.

Verified game files.

Repaired and reinstalled EA Javelin AntiCheat multiple times.

Cleared the EA App cache.

Restarted Windows.

Ran Steam and the installer as Administrator.

Ran DISM successfully.

Ran SFC successfully with no integrity violations.

During troubleshooting I found:

Event Viewer:

EA Javelin AntiCheat

Event ID 1000

ExitType 95 (267)

The EA AntiCheat service exists.

The registry points to:

C:\Windows\System32\drivers\eaanticheat.sys

However, that file does not exist.

The EA Javelin installer detects F1 25 and reports "Installation successful", but the driver is never installed.

The registry key exists under:

HKLM\SYSTEM\CurrentControlSet\Services\EAAntiCheat

ImagePath is:

system32\drivers\eaanticheat.sys

DISM and SFC both completed successfully.

Windows Code Integrity shows no driver blocks.

pnputil does not show an EA AntiCheat driver package.

C:\ProgramData\eaanticheat is created but contains no logs or crash dumps.

Windows 11 Version 25H2

OS Build 26200.8894

Has anyone else experienced this or found a fix?