Finding and installing a working for this legacy device requires understanding its underlying hardware, as Sony never released official Windows 10 drivers for it. The Core Challenge: Official vs. Unofficial Support
Go to the official Realtek website or a trusted repository like Station-Drivers or LaptopVideo2Go . Search for: "Realtek RTL8192CU Wireless LAN driver Windows 10" Look for version 1027.5.1120.2015 or newer. sony usb wireless lan adapter uwa-br100 driver windows 10