If your PC is looping/restarting specifically during Fortnite, it might be a hardware failure:
Common symptoms include:
Yes. The loop pulled me back in during Chapter 5, and the PC version is the definitive experience. Fortnite Looping Pc-
Have you broken the loop? Share your fix in the comments below. For more Fortnite PC performance guides, check out our articles on "How to reduce input delay" and "Best Windows settings for Chapter 5." Fortnite Looping Pc-