[FC 26] Crash on Launch with Error 0xC0000005 (EA Javelin AntiCheat / Access Violation)
Hi, something like frosty mod manager can create their own environment variables which makes other frosty games unable to run. I fixed this by using this method.

11 fixes · 0 how-to answers · Steam discussions
Hi, something like frosty mod manager can create their own environment variables which makes other frosty games unable to run. I fixed this by using this method.
No confirmed fix yet. Players suggest: A couple of things you could try: - alt+tab out and back in after launch to see if it clears it - make sure no overlays are running (Steam, Discord, etc.
No confirmed fix yet. Players suggest: Hey there, There are a few things we can do to try and solve this issue.
No confirmed fix yet. Players suggest: A couple of things that might be worth checking: - try disabling HPET / timer-related settings (some people saw weird stutter across multiple games because of that) - might be worth watching Task Manager while you play…
No confirmed fix yet. Players suggest: Check if there are any pending security prompts, unaccepted terms/updates, or regional verification banners.
No confirmed fix yet. Players suggest: Two targeted things to test next: - Try launching from a fresh local Windows administrator account.
No confirmed fix yet. Players suggest: Hey, i fixed it but thanks for a reply.
Suggested fix (unconfirmed): Verify the game files through Steam and delete your personal settings file in the Documents folder.
Suggested fix (unconfirmed): Launch the game through Steam with Steam Input enabled, or add the game as a non-Steam shortcut if launching from the EA App.
No confirmed fix yet. Players suggest: First half is every bit as good as I'd expect on my mediocre NVIDIA 3050 set-up, but my game is unplayable from half time in all online and offline modes.
FC 26: A Complete Guide to Fixing Lag, Stuttering, and Slow Motion on PC.