Search for "Janome," "Artistic Digitizer," or the name of the authorized dealer where you bought it.
Usually on a sticker inside the DVD case or on the quick-start guide. Search for "Janome," "Artistic Digitizer," or the name
There is no universal "Master Key." A serial key that worked for someone in Ohio will not work for you in Texas because the activation code is hardware-locked. Search for "Janome