Windows 10 often includes a "Generic Bluetooth Adapter" driver that works automatically.
If the installer doesn't run automatically, follow these steps to manually update it: Windows 10 often includes a "Generic Bluetooth Adapter"
Start by visiting the HP EliteBook 8470p Software and Driver page . If Windows 10 isn't listed, select "Windows 8" or "Windows 8.1" (64-bit) as these drivers are usually compatible with Windows 10. Windows 10 often includes a "Generic Bluetooth Adapter"