Window’s Disk Management and Mac’s Disk Utility applications are secure platforms to erase your WD My Passport easily. You don’t require any third-party software to format your WD My Passport with FAT or ex-FAT. Caution: Avoid Formatting your WD My Passport without Backup. We can’t rule out the possibilities of human errors resulting in the accidental formatting of the WD My Passport external drive. Western Digital has a Windows based utility that will reformat an older Western Digital external USB or FireWire hard drive back to the factory default FAT32 partition. The FAT32 formatter software is only for older external single drive units and can only format a drive that is 1TB and below. It will not work on an external drive that is greater than 1TB in size.

So, you just bought an external hard drive and wanted to use it on your Mac. But somehow, macOS doesn't allow you to write data to the drive. That's all because it's been initialized with Windows NT File System (NTFS), which is primarily for PCs.

Apple Mac machines support a different file system. In this post, I'm going to show you how to format your external drive for a Mac compatible file system i.e. Mac OS Extended (Journaled).

Just follow this easy step-by-step guide and you're all set. Important note: If you have useful files stored on the external drive, be sure to copy or transfer them to another safe place prior to formatting. The operation will erase all data and your files will be gone for good.

You could use a recovery program like to retrieve them, but the odds of recovery vary. Pro tip: If your external drive has a large volume, like mine -- a 2TB Seagate Expansion -- I highly recommend you also create multiple partitions. I'll also show you how to do that below. Most External Hard Drives Are Initiated with NTFS During the last several years, I've used several removable drives, including a 500GB WD My Passport, 32GB Lexar flash drive, and a few others. Three weeks ago, I bought a brand new to backup my MacBook Pro before I updated to the latest macOS, 10.13 High Sierra (also see I encountered).

Reformat

When I connected the Seagate to my Mac, the drive icon showed up like this. What is NTFS? I'm not going to explain here; you can read more on. The problem is that on macOS, you can't work with files saved on an NTFS drive unless you use a paid app. How to Format an External Drive to Work with Mac (from NTFS to Mac OS Extended)? Note: The tutorial and screenshots below are based on macOS Sierra 10.12.5. They might be different if your Mac has a different version.

Can you write an iso file to a my passport hard drive for mac? Portable storage devices have, of course, been around for donkey’s years, but while external hard drives (HDDs) are much cheaper than their SSD counterparts, they’re also a lot more liable to break when you chuck them in a bag due to the number of moving parts they have inside them. It also has 256-bit AES hardware encryption to keep it secure, and it’s shock-resistant up to 6.5ft (or just under 2m), too, giving it extra durability if you accidentally send it flying because it’s so damn diddly. They’re also generally a lot bigger and bulkier to carry around. The WD My Passport SSD, by comparison, measures just 90mm long, 45mm wide and a mere 10mm deep, making it exceedingly easy to slip into a jeans or jacket pocket without much fuss.

Step 1: Open Disk Utility. The quickest way to do this is a simple Spotlight search (click the search icon on the upper right corner), or go to Applications > Utilities > Disk Utility.

After clicking 'Partition', you'll see this window. Located on the left is a big blue circle with the name of your external drive together with its volume size.

What you need to do next is click the add '+' button to increase the number of partitions on your external disk. Then allocate the desired volume to each partition.

You can do that by clicking the small white circle and dragging it around. After that, you can rename each partition and define a file system for it. Step 3: Confirm your operation.