If Windows 11 stops detecting your wireless keyboard, the problem is almost always fixable — and usually far less mysterious than it feels at first. In this deep-dive guide I walk through a structured, risk-aware troubleshooting path that starts with the simplest checks (battery, pairing, receiver placement) and escalates to driver and system repairs (Device Manager, USB/HID stack, SFC/DISM, BIOS). Along the way I explain why each step matters, highlight common failure modes, and give...