If you have a .inf driver folder instead of an executable:
Third-party repositories like DriverIdentifier host specific versions for various hardware IDs. Common Hardware IDs for BCM2045A0 bcm2045a0 driver windows 11
: The Microsoft stack often lacks Low Energy (BLE) support and may cause random disconnects with BT 4.0 devices. If you have a
If the driver was designed for Windows 10 or 8, it might not install directly. HP Support Assistant
Since the BCM2045A0 is often part of a specific laptop model, the best source for the driver is the laptop manufacturer's website (e.g., HP Support Assistant, Dell Support site).