Hello I've played 55h on F125 without a single issue and now for no reason the game can't launch anymore. (Steam version) I click on "play" then the Easy Anti Cheat Javelin screen pops up. Then...
Ideas
SOLVED
Ok wow this fixed it. Go here: Settings > Windows Update > Update History > Scroll down to bottom > Uninstall Updates > Uninstall the latest updates. I uninstalled KB5064401, KB5064081, and one more I forgot the name but essentially the most recent updates within the past 2 weeks. Let it uninstall them all and then restart and it should work for you.
https://www.reddit.com/r/F1Game/comments/1n64bfo/f1_25_anticheat_crashing_game/