In some Windows 10 builds (v1809–22H2), Windows Update may deliver:
Depending on your system's current state, you can use automated Windows updates or manual installation files. AR5B225 in an AO756-2887: Wifi ok, but no Bluetooth atheros ar5b225 driver windows 10
If you installed this card into a laptop that didn't come with it originally (like upgrading an older ThinkPad), ensure your BIOS doesn't have a whitelist blocking the card. If the laptop won't even boot, the card is unauthorized by the motherboard. In some Windows 10 builds (v1809–22H2), Windows Update