Leo knew the drill. Most official support sites had long since scrubbed the legacy drivers for Windows 10, leaving users to wander through the minefield of "Driver Updater" scams and malware-laden forums. He needed a "REPACK"—a community-verified, compressed bundle that stripped away the bloat and just made the hardware speak to the OS.
Once you get the ISSCBTA driver working, create your own clean repack: Bluetooth Isscbta Driver Windows 10 REPACK