How to protect yourself from DDoS attacks?

Question

DDoS Protection

Hello, I faced such a problem, one of the people from the Internet threatened with DDoS and started DDoSing. How to protect your personal computer from DDoS? I searched Google and found only ways to protect sites or personal servers. OS on a Windows computer. And also, is it possible to somehow complain somewhere so that the criminal is given a staff or some kind of punishment. There are screenshots of correspondence with him and his data, but I don’t know if they are correct.