f you're a Mac user setting up or erasing this hard drive up with your computer is super easy follow these steps. I never use software that comes with hard drives I just wipe them & use Time Machine.

1. Plug in the hard drive
2. Open up disk utility found in your applications folder inside the utilities folder
3. Next select the newly plugged in a hard drive and on the right-hand side you should see partition click on that.
4. Then inside that screen on the partition layout drop-down choose how many partitions you'd like to set up. I generally go with one partition and just use folders to organize my files.
5. Then on the right-hand side you can name the partitions and select the format. If you want your hard drive to work with your Mac for doing Time Machine backups (which I highly recommend) choose Mac OS Extended. Sometimes it's good to make two partitions and one using "MS-DOS fat" if you might be transferring files to and from a Windows machine. The reason is Windows machines and Max can read and write to the "MS-DOS fat" format but your files will need to be under 4 GB each as that's the maximum file size it can hold.
6. Then click apply and your Mac will create all the partitions you wanted and you're good to go.