Basic functionality may sometimes be achieved through Windows Update by letting the OS search for a generic driver for the detected hardware ID.
Because the UWA-BR100 uses a common chipset (often Atheros or Buffalo-based), some third-party driver repositories offer compatible files.
PC, you may find limited success using third-party methods, though these are not officially supported: Chipset Driver Identification : The UWA-BR100 often uses an Atheros AR9280
If you cannot find a Windows 10-compatible driver, you might consider using a universal wireless adapter driver if available, or reaching out to Sony support directly for further assistance.
Sony USB Wireless LAN Adapter UWA-BR100, driver download, Windows 10, installation guide, troubleshooting tips.