I want to install Ubuntu 12.10 64 bit but I can't since Logitech MX 5500 Combo (Keyboard/Mouse) is not detected. I'm new to Ubuntu.
That is part of a bug had been around for a while. Launchpad Bug 870227.
The only fix for now for 12.10 is to have a separate keyboard (or boot in to an OS that can modify your installation) and go in to
Just put a