If you wish to skip to our quick instructions without the extended walk-through information click here. If you have multiple external hard drives connected we recommend disconnecting them all prior to initializing your new drive as well, just as a precaution. However, if there are other drives in use on your system, it’s absolutely critical to pay close attention that you don’t erase the wrong drive.

In the case of a new drive, that’s not a matter for concern-it does not have any data on it yet to worry about. Initializing and formatting a hard drive will erase *all* information on that drive. If you are trying to access existing data or attempting data recovery on your hard drive and are encountering issues, please see this post here.īefore we get started, a brief word of caution is essential. We’ll be using a 4TB hard drive as our example. They also apply to new hard disks that are installed inside your computer and potentially other docking stations/enclosures/adapters. The following steps apply to our USBC-SATA-V, USB3-SATA-UASP1, USB3-SATA-U3, and our entire Plugable Storage System lineup. We’ll cover the most common scenarios we run into, starting with Windows and finishing with Mac OS X instructions. Initializing prepares the drive to be used by the computer, partitioning sets aside specific areas of the disk for data, and formatting sets up the framework the computer uses to store that data.

Partition external drive on mac