Why is my computer not connecting to a Bluetooth mouse or keyboard?

Check pairing: Verify that the mouse or keyboard is in pairing mode and that the Bluetooth settings on your computer recognize the device.
Re-pairing device: Re-pair the Bluetooth mouse or keyboard with your computer by clicking on Add Bluetooth Device in your computer’s Bluetooth settings menu.
Restart: Restart your computer to ensure the Bluetooth connection is able to configure correctly.
Update drivers: Ensure your computer is running the latest drivers available for the Bluetooth device.
Re-install: Try re-installing the driver for your device if none of the above steps have worked.