Connect the disk and open Disk UtilityĬonnect the hard drive or USB drive to your Mac and then open the Disk Utility app, which is located in Applications> Utilities> Disk Utility. You can also open the app from Launchpad.Ĭhoose the disk that you want to format for both Mac and PC from the column on the left. Luckily, with OS X, you can create a disk that can be used by both operating systems in a snap. Here’s how.
