There is no official Windows 10 driver for the Wireless LAN Adapter, as Sony designed this hardware exclusively for use with Wi-Fi-ready BRAVIA TVs and Blu-ray players.
If the above methods don't work, you can try manually installing the driver: sony uwa-br100 driver windows 10
The Sony UWA-BR100 is an interesting relic. Sold primarily between 2010 and 2013, it was required hardware for Sony’s "Bravia Internet Video" services. Visually, it looks like a standard USB Wi-Fi dongle, often paired with a specialized extension cable to get it away from the TV’s chassis for better reception. There is no official Windows 10 driver for