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.

When your Bluetooth mouse suddenly stops working and the entire Bluetooth functionality disappears from your PC, no toggle switch, no Bluetooth in Device Manager, it usually indicates a deeper issue ...

If your Bluetooth driver is missing, you may be unable to connect to wireless headphones, mice, keyboards, and other essential peripherals. This frustrating issue often manifests as a complete absence ...