Bluetooth is baked into just about everything these days, from wireless earbuds and fitness trackers to laptops, cars, and smart home devices. In 2025 alone, there were an estimated 5.3 billion ...

If the Event ID 16, Bluetooth fails to connect keeps troubling you; this post may help. Event ID 16 appears in the Windows Event Viewer if your computer has failed to establish a Bluetooth connection.

Start with a reboot; this frequently corrects the problem. Reviewed by Ryan Perian Restarting your computer is often the simplest first step to fix a Code 43 error ...