Since the last patch (4.3.0), I've been having problems with Anti Easy Cheat. I haven't found a real solution for it yet. Sometimes it helps to reinstall the AMD Adrenalin Driver with ddu , which is supposedly unreliable. Sometimes it helps to downgrade the driver. Sometimes it helps to delete Anti Esay Cheat folder in Starcitzen I don't know if these topics describe the same problem here. -> https://robertsspaceindustries.com/spectrum/community/SC/forum/51473/thread/exception-access-violation-0xc0000005-known-causes/412494 https://robertsspaceindustries.com/spectrum/community/SC/forum/51473/thread/game-crashing-at-launch-3221225477 But it's just annoying. other esay anti-cheat games (squad) don't have this problem. I really don't know what else to do. It's just frustrating.