If you are the type of geek frequently transferring data between your phone and Windows 7 laptop, then you might want to check a recent tutorial from 7 Tutorials. This guide shows you how to connect any device to your Windows 7 computer via Bluetooth, how to send and receive files between devices and how to troubleshoot the problems you encounter.
Transfer Files Between Devices & Your Windows 7 PC via Bluetooth
Unknown Devices is a small application that helps you figure out what those devices with question marks in Device Manager are really about. Of course, normally you should just install the motherboard & system drivers, but sometimes it can really help to figure it out.