Third-party repositories like DriverIdentifier host specific versions for various hardware IDs. Common Hardware IDs for BCM2045A0
If the driver fails to "stick" after a reboot, the hardware may be physically incompatible with the Windows 11 Driver Model (WDDM/WDM). In these cases, the most efficient solution is a $10–$15 USB Bluetooth 5.0+ adapter, which provides "plug-and-play" functionality and better range. bcm2045a0 driver windows 11
Sometimes the driver is hiding in plain sight. Go to Settings > Windows Update > Advanced options > Optional updates . Check under "Driver updates"—BCM2045A0 often lurks there under a generic Broadcom label. bcm2045a0 driver windows 11