step 2 follow the steps above to format the drive, and then you can use it with time machine on your mac system. step 1 open finder, applications, then go to utilities and disk utility.
To format an external hard drive for mac with time machine, you must follow the steps below. all is set, then you can go ahead to format the drive on your mac. the easiest way is to drag it from one drive to another. hence, you must backup your important files before reformatting the drive if you want to save them. Formatting an external hard drive would erase everything on it.