The Sony UWA-BR100 is built on the Atheros AR9280 (specifically the AR7010/AR9280 USB dual-band) wireless chipset.
This is the simplest solution. A new, modern USB Wi-Fi adapter that is officially supported by Windows 10 and 11 can be purchased for a very low price. This will save you hours of frustration and provide a much more reliable and faster connection (with support for 5 GHz bands). The Sony UWA-BR100 is an older 2.4 GHz-only device, so a new adapter will also be a significant performance upgrade. sony usb wireless lan adapter uwabr100 driver windows 10 upd
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