If a USB device is generating the Code 43 error, uninstall every device under the Universal Serial Bus controllers hardware category in Device Manager as part of the driver reinstall.

It can occur for various reasons, such as incompatible drivers, software conflicts, or hardware issues. Fix Event ID 16, Bluetooth fails to connect ...

If you're currently dealing with this problem and have tried a few methods that are not effective, here's how to troubleshoot and fix Bluetooth issues on Windows 11.