Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk.
Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk.
How to Format a New Internal SSD in macOS High Sierra Tuesday, November 28th, 2017 Author: OWC Ben M. Recently, some OWC customers have reported experiencing a situation where their new SSD will not show up in Disk Utility in High Sierra. Although Disk Utility should always be tried first, a Mac’s Terminal can be used to format the drive in these cases. Jun 07, 2018 I have a 4TB WD My Passport and have struggled to connect to it and retrieve files from it since upgrading to High Sierra. I've tried using Disk Utility to erase the drive, partition it and even tried to re-download outdated Sierra software (which failed). I have lots of data on the drive which I want to save if possible, but nothing seems to help. Solution 3: format and erase hard drive under macOS 10.13 High Sierra with AweEraser for Mac. AweEraser for Mac is a data erasure application. It can format your hard drive and erase all the data on your hard drive, beyond the scope of data recovery. It means the data on your hard drive will be permanently erased.
Erasing a disk or volume permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep.
- My Passport™ for Mac is trusted, portable storage that perfectly complements your on-the-go lifestyle. Compatible with USB-C and USB-A devices, My Passport for Mac comes equipped to connect with today's latest technology. Designed to fit in the palm of your hand, there’s plenty of space to store a massive amount of photos, videos, music and documents.
- WD external hard drive won't mount on Mac? This tutorial will show you how to fix WD My Passport not mounting/showing up/recognized/detected on macOS Catalina 10.15/Mojave 10.14/High Sierra 10.13/Sierra 10.12.
How to erase your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - Choose View > Show All Devices from the menu bar in Disk Utility. The sidebar now shows your disks (devices) and any containers and volumes within them. The disk your Mac started up from is at the top of the list. In this example, Apple SSD is the startup disk:
- Select the disk that you want to erase. Don't see your disk?
- Click Erase, then complete these items:
- Name: Type the name that you want the disk to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- Scheme: Choose GUID Partition Map.
- Click Erase to begin erasing your disk and every container and volume within it. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the disk you erased, reinstall macOS on the disk.
How to erase a volume on your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the volume your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - In the sidebar of Disk Utility, select the volume that you want to erase. The volume your Mac started up from is named Macintosh HD, unless you changed its name. Don't see your volume?
- Click Erase, then complete these items:
- Name: Type the name that you want the volume to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- If you see an Erase Volume Group button, the volume you selected is part of a volume group. In that case, you should erase the volume group. Otherwise, click Erase to erase just the selected volume. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the volume you erased, reinstall macOS on that volume.
Reasons to erase
You can erase at any time, including in circumstances such as these:
- You want to permanently erase all content from your Mac and restore it to factory settings. This is one of the final steps before selling, giving away, or trading in your Mac.
- You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
- You received a message that your disk isn't readable by this computer.
- You're trying to resolve a disk issue that Disk Utility can't repair.
- The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
- The macOS installer says that you may not install to this volume because it is part of an Apple RAID.
About APFS and Mac OS Extended
Ygopro for os x 10.6. Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.
How to choose between APFS and Mac OS Extended
Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS. If you want to change the format, answer these questions:
My Passport For Mac 4tb
- Are you formatting the disk that came built into your Mac?
If the built-in disk came APFS-formatted, Disk Utility suggests APFS. Don't change it to Mac OS Extended. - Are you about to install macOS High Sierra or later for the first time on the disk?
If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files. - Are you preparing a Time Machine backup disk or bootable installer?
Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer. - Will you be using the disk with another Mac?
If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't work with APFS-formatted volumes.
How to identify the format currently in use
If you want to know which format is currently in use, use any of these methods:
My Passport For Mac Instructions
- Select the volume in the Disk Utility sidebar, then check the information shown on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
- Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
- Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.
If your disk or volume doesn't appear, or the erase fails
- Shut down your Mac, then unplug all nonessential devices from your Mac.
- If you're erasing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good. Then turn the drive off and back on.
- If your disk or volume still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your disk or Mac might need service. If you need help, please contact Apple Support.
Learn more
- If you can't start up from macOS Recovery, you can use a different startup disk instead.
- If Disk Utility shows a Security Options button in the Erase window, you can click that button to choose between a faster (but less secure) erase and a slower (but more secure) erase. Some older versions of Disk Utility offer the option to zero all data instead. These secure-erase options aren't offered or needed for solid-state drives (SSDs) and flash storage.
Jun 08, 2020 • Filed to: Answer Hard Drive Problems • Proven solutions
External drives are portable hard drives which can be used for storing data which you want to keep on hand during your travels. Most of the external drives especially the WD ones available in the market are either formatted in NTFS or HFS+ format. The NTFS format is for Windows while HFS+ is for Macs. However, the new Macs are shipped with the latest Mac OS version, macOS High Sierra which supports the Apple File System or APFS. If your WD external drive isn’t in this new format, you won’t be able to use it if your Mac has been updated to macOS High Sierra. In such cases, you need to simply convert your WD external drive to APFS format.
Format My Passport For Mac High Sierra 10 13
How to Convert External Drive to APFS format
If you want to format your external drive from its existing file format to the new Apple file format, APFS or Apple File System then you should follow these simple steps.
- On the macOS 10.13 High Sierra, navigate to the disk utility and open it.
- Locate the USB port of your computer and then connect your WD external drive into it.
- In the Disk Utility window, find the option Show All Devices and click it.
- In the window pane located on the left, find the drive volume and select it after which click on the option labeled Partition.
- Check that the scheme listed under Device Information has been set to GUID Partition Map. Then pick Mac OS Extended Journaled from the drop down menu for the Format under the Partition Information.
- After taking the required steps, hit the Apply button.
- Hit the button labeled Partition
- Select the partition of the external drive either labeled No Name or My Passport and then right-click on it.
- In the drop-down menu that appears, click the option labeled Convert to APFS.
- It will take a little time for the conversion process to complete, so be patient. You will see a tick-mark appear once the conversion has been successfully completed. When this tick-mark appears, click the ‘Done’ button.
- To ensure that the file format of the drive has been converted, go to desktop and right-click on the My Passport drive.
- In the drop-down menu that appears, click on the option labeled Get Info.
- Check that the Format option under general has been changed to APFS.
Video Tutorial on How to Format an External Hard Drive
What is APFS?
APFS is the short form of Apple File System. It was introduced by Apple in the year 2006 and is now the default file system of the latest Mac operating system, macOS High Sierra. This new file system replaces the previous file system, Mac OS Extended or HFS+, which was used by all the Mac OS versions which came before it. It offers a number of advantages over its predecessors and is automatically applied to your hard drive upon the installation of macOS High Sierra. APFS has been optimized for SSDs and flash drives but can be used for external and hybrid drives as well. However, it is best suited for flash and solid state drives.
One thing to keep in mind about APFS is that it only works on macOS High Sierra. So, if you don’t have this Mac OS installed on your Mac, you won’t be able to open any drives using the APFS format. Airport backup for os x download.
Advantages of Converting to APFS
APFS offers a ton of benefits which you don’t find in HFS+. Moreover, it is also the recommended file system for SSDs and flash drives. The following are some of the advantages that you can avail by converting to APFS.
- Fast Duplication and Copying: APFS is a lot faster than HFS+. It can copy and duplicate files and folders within seconds. The process is almost instantaneous and will be over in the blink of an eye. You won’t have to wait for an eternity to see the files being copied one Megabyte at a time. The reason why APFS is able to do that is because it makes use of metadata. This allows it to complete the copying and cloning process much more quickly than HFS+ ever could.
- Reliability: Aside from fast performance, APFS is also the most reliable file system around. Apple has worked on the reliability of this file system and has ensured that it does not crash as much as HFS+ used to do. This means that you would have to face less instances of file corruption than before if your drive is using the APFS format.
- Efficient Partition Management: APFS does a great job of managing the partitions that you have created on your drive. It stores the information on the partitions in such a manner that files don’t get fragmented and need to be pieced together later. This efficient use of the available drive space ensures that you don’t run out of storage space anytime soon.
- Encryption: Privacy is a very big issue for people and if you have some sensitive data on a file or in a folder then you would definitely want to keep it private. With APFS, you get the chance to encrypt individual files and folders on your drive in addition to encrypting the entire hard drive. This offers you an added layer of security which HFS+ couldn’t provide.
If you have bought a new WD external drive which isn’t formatted in the APFS format then you would have difficulty in opening it on a Mac running macOS High Sierra. Moreover, you won’t be able to enjoy the numerous benefits that this new file format has to offer you. In order to make sure that your WD external drive takes advantage of the APFS format, you need to convert it from HFS+ to APFS. You need to follow a simple set of procedures to ensure that your WD external drive is converted to the APFS format. These steps are easier to follow and the whole process wouldn’t take much time to complete.
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