Enumerating Problems

Can anione explain what enumerating in DFU tool meant and why does it always freezes at the enumerating part... Anyone encounter it before?... Any solutions?

It's a bug, from what I hear, because DFU doesn't work right using USB2.0. It stops getting stuck there if you go into your computer's BIOS (when you first turn on the computer) and turn off using USB 2.0. Your PC should use USB1.1 then, and it will go slower and finish. I don't know if it matters if it gets stuck there or not, because it might just be the text "Enumerating..." gets stuck, but the process still finishes.

It didn't seem to matter except for speed for me, but since DFU does nothing for mine, I have no idea if it matters or not.