How do you reformat windows ME?
First always back up your data. Make sure you have the restore disks that came with your computer, it will have all of the drivers for the computer.Normally, you can just boot up with the Disks in the drive, it will ask you if you want to start from the CD or the hard.
But realistically, if you are having problems and your system and you are running ME, reformating won't necessarily fix things. ME just has a lot of bugs in it. I've "blow away" some many copies of ME of friends who thought there was something wrong with their computers. Its not the computer its ME. If you can, purchase a copy of 2000, or XP. That's really the best option.