Since Windows will likely identify the device as "Unknown" or "Sony UWA-BR100" without finding a driver, you must manually point it to a compatible Atheros driver. Step 1: Identify the Hardware ID Plug the adapter into a USB port. Open (Right-click Start > Device Manager).

Sony's official support site explicitly states that there are no available driver downloads for Windows, as the adapter was intended solely for home entertainment hardware.

: Hosts a specific legacy driver often cited in community guides for Windows 8/10 workarounds. [CommView] Sony UWA-BR100 Drivers Download

You can often use the or Actiontec Wireless drivers to bridge the gap.

Select the (or a similar 802.11n model).

However, because the hardware utilizes a standard Atheros chipset, it is possible to "force-install" compatible drivers. How to Install Sony UWA-BR100 on Windows 10