Hopefully someone with better knowledge than I can tell me how to deactivate/delete time machine via terminal. With out any reason or warning time machine immediately formats any external hard drive attached to the system. I never used time machine ever and have always had it turned off. So far it has erased several drives at least a half a dozen times . In frustration I deleted the time machine app and preference pane however Time Machine still rears it's ugly head and ask if this drive should be used, when I click No, It Still formats the drive and I loose everything in it. Any helpful advice will be greatly appreciated.