In both cases, if you are running a modern computer, you are likely running the version of Windows 10. This distinction is critical. A 32-bit driver will not work on a 64-bit OS, and vice versa. Ensuring you have the correct architecture is the first step toward stability.
: Microsoft enforced driver signing more strictly after Windows 10 1607. You can either enable Test Mode ( bcdedit /set testsigning on ) or find a newer generic driver that is signed. Generic Bluetooth Adapter Driver Windows 10 64-bit