Overlays are the #1 trigger for Easy Anti-Cheat loops.
A looping PC during Fortnite isn't just a technical glitch; it’s a sign that the delicate balance between your operating system and the game’s engine has been disrupted. By systematically checking your anti-cheat services, verifying your game cache, and ensuring your drivers are current, you can move past the loading screen and back onto the Battle Bus.
If your entire PC restarts while playing, it is likely a system stability issue:
If your PC has 8GB of RAM or less, Fortnite’s on-demand texture streaming can cause infinite loading loops.