Sep 27,2020 • Filed to: Hard Drive Recovery • Proven solutions

'How to format an external hard drive Mac? What format system to use when reformatting my storage drive for a Mac?'

  1. Discover the world of external hard drives for Mac. Compare portable, USB and external hard drive models for office and home and shop online.
  2. Why should you consider formatting your hard drive? You might already know the consequences of.

This is a frequent question asked by first-time, as well as the not-so-tech-savvy, macOS users. Learning how to format an external hard drive Mac is essential. Because saving all your data on the Cloud is nice and all, but physical storage is still popular. Especially if you don't have a stable internet connection or if most of your files are large.

Disk Utility showing GUID option for drive format Click Erase to wipe all the data that’s currently on the drive and reformat it for your macOS install. The drive will be formatted HFS+, but. How to Format an External Drive in OS X 1. Connect the drive to the Mac. Open Disk Utility. The easiest way to do that is hit CMD and the spacebar at the same time and type in Disk Utility. Select the drive you want to format. If you don't plan on using the drive for Time. Steps how to Format Usb Flash Drive on Mac Step 1: Connect the flash drive to the USB port. Newer MacBook and MacBook Pro models ship with USB-C ports only. Step 2: Launch the Finder window. Open the Finder window. You should see your flash drive in the list under the. Step 3: Launch Disk.

Luckily, you don't have to learn rocket science to be able to format an external hard drive for Mac or PC. The operation is pretty straightforward. When it comes to your iOS device, we have listed two methods for you, read below and explore more.

Part 1: What Is the Best Format for External Hard Drive Mac?

The first step to formatting your external drive for a Mac computer is choosing the right format. There are four possible choices:

  • APFS (Apple File System)
  • HFS+ (Mac OS Extended)
  • exFAT (Extended File Allocation Table)
  • FAT (MS-DOS)

To understand which is the best for you, let's have a comprehensive overview of each of them.

1. Apple File System

The APFS was first introduced in 2017 as a replacement for the HFS+. Nowadays, all new Macs come with the operating system preinstalled on APFS, as this system is optimized for use with SSD and flash storage drives. However, it still works with traditional HDD drives too.

This is the best format to pick if you have an external SSD or USB flash drive that you don't intend to use with a Windows device.

The biggest strength of this system is the speed, as well as the encryption and metadata handling. However, you won't be able to use this system with Time Machine.

2. Mac OS Extended

The HFS+, or Hierarchical File System plus on its real name, was the main file system used for Mac until 2017.

This type of file system is suitable to use with both HDD and SDD drives, but the latter will perform slightly better with the APFS mentioned above. If you have an older Mac, though, choosing the HFS+ is your best bet.

In general, all external drives formatted to HFS+ work nicely with older Mac versions but are incompatible with Windows.

3. Extended File Allocation Table

Designed by Microsoft, the exFAT is a good choice if you plan to use the external hard drive with both macOS and Windows systems. Yet, you won't get top performance on either. This choice is more appropriate for USB flash drives, although you can still use it for SDD and HDD units too.

The main issue with exFAT is that your drive will be more prone to fragmentation when used with Apple devices and is less stable than NTFS on Windows. If you really have to share the drive between Mac and Windows machines, that's your best option though.

4. MS-DOS

Macs also support FAT32 drives, marked as FAT in Disk Utility. This format should be avoided at all costs unless you're dealing with a really old Windows computer, which you really have to use in parallel with your Mac system.

Typically, there is no reason to choose this option unless you're planning to use the external hard drive on a Windows XP or earlier machine.

Part 2: How to Format an External Hard Drive Mac?

Now that you know which format to choose, it's time to learn how to format an external hard drive for Mac. There are essentially two methods, with Disk Utility or Time Machine function.

Note: If you plan to format an older external drive, perhaps one you used with another device, make sure to backup all data before proceeding. Formatting is a permanent procedure that can't be reversed. While there are data recovery software you can use if you lost data, it is always better to prevent.

That said, here's how to format an external hard drive Mac:

Method 1: Format Mac Hard Drive with Disk Utility

Disk Utility is a utility application proprietary to macOS that is used to both format and manage internal and external disks. Here's how to use it:

Step 1 Connect the external hard drive you want to format to your Mac, then start the Disk Utility app that you can find under Applications -> Utilities.

Step 2 On the left side of the Utilities screen, find the name of the external hard drive you want to format and select it. Then, on the top side under the Disk Utility, click on the Erase button.

Step 3 Follow the on-screen prompts to select the desired file system and allow the drive to format. That's it! After the process is complete, you can either start using the drive or choose to create partitions on it.

Method 2: Format Mac Hard Drive with Time Machine

Formatting an external hard drive with Time Machine is as easy as formatting it with Disk Utility. Time Machine, however, gives you the possibility to create an automatic backup of the data on your hard drive before formatting it.

Before you proceed, therefore, you should first set up the external drive to use with Time Machine. To do this, open System Preferences and select Time Machine after you've connected the external drive to your Mac.

Now, click on Select Disk and select the desired drive from the list. Click on the Use Disk button. At this point, the system will run an automatic backup two minutes after you've clicked on the Use Disk button, or you can proceed with the formatting if the hard disk is empty.

To format an external hard drive for Mac with Time Machine, you must follow the steps below.

Step 1 Open Finder, Applications, then go to Utilities and Disk Utility.

Step 2 Follow the steps above to format the drive, and then you can use it with Time Machine on your Mac system.

Part 3: Bonus Tip – Data Recovery from Formatted Hard Drive on Mac

Sometimes, it may happen that you accidentally formatted an external hard drive containing important data. Whether it's your wedding pictures or your bachelor's degree thesis, chances are you want to get that data back as quickly as possible.

If you have a newer version of Mac, you can use the Apple Time Machine to recover your canceled files, or you could choose to use external software, such as Recoverit Data Recovery.

1. Recover Data with Apple Time Machine

In the former hypothesis, you can try to recover your data with the Time Machine. This app is Apple's backup feature present on the newer systems. If you followed the steps above before formatting the hard drive with Time Machine and allowed the app to execute the backup, then there are high chances that you can recover any lost data without too much hassle.

To do so, just launch the Time Machine and browse through the folders to see if it has saved the files you require.

For easier browsing, you can use the time stamp feature on the right side of the screen and select the date or time when you executed the backup. Once you found the files, simply click on Restore to get them back.

2. Recover Data with Recoverit Data Recovery

If you didn't use the Time Machine function or couldn't find the files you need, you can try to recover any lost files with trusted third-party software, such as Recoverit - Data Recovery.

Recoverit (IS)

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  • It allows you to recover unlimited lost or deleted files from your Mac device, including photo, video, and audio data, document files, and more.
  • It supports all types of Mac files irrespective of their extension.
  • Compatible with both internal and external drives, USB pens, memory cards, and other hardware, so you can rest assured it will retrieve your data if it's there.
  • Retrieve data from accidentally deleted files, lost or formatted partitions, data lost due to virus attacks, system crashes, or data lost by the Time Machine.
  • It is free to download and supports all leading macOS versions, including the 10.14 release.
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This system is also very easy to use, in just three easy steps:

Step 1Install the application and choose the desired location

Download and install the software on your Mac computer, then open it and select the external hard drive, partition, or location where you want to retrieve data.

Step 2Start the scan to retrieve your lost data

Click the Start button. The software will now scan the selected drive and display all retrieved data in an easy-to-scour list.

Step 3 Preview the recovered files and save them in your chosen location

Review and select the target files, then launch the recovery process. That's it. The software will restore your lost data.

Conclusion

As you can see, how to format an external hard drive Mac is not particularly complicated. The Disk Utility allows you to format the desired drive to the desired system in a blink of an eye. Backing up the data on your drive with Time Machine also allows you to avoid the recovery hassle. If you still lost some data, you even know which software to use to recover all lost files.

Now it's your turn. Use this guide to format your unreadable external drive, download, and use the data recovery software if needed, and don't forget to share this article with your Mac-addicted friends. They might make good use of it too.


Sep 28, 2020 • Filed to: Solve Mac Problems • Proven solutions

'I am thinking about selling my Mac and it has personal data on it. How do I format my Mac High Sierra? What should I do to make it entirely new? '

There are various reasons why people would try to format Mac. Maybe you are selling it or maybe you just want to empty up space. Whatever the reason is, the in-built Disk Utility is the only thing you need to carry out the task. But if you intend to use it afterward, you must gather up some additional information about the Mac file format too.

The biggest decision you have to make before you format Mac is to choose the right file format. Once you pick the right format for your needs, you can move on to how to format a Mac guide. Go through this article and you will know everything you should regarding formatting Mac safely.

Part 1. Overview of Formatting Mac

Formatting means deleting, erasing, or wiping out the existing data from a drive. This is done to make space for new data on the storage media. Formatting means erasing data on a drive while keeping the same format. You must have come across forums where people ask how to format NTFS on Mac. Typically, reformatting involves changing the NTFS or exFAT format to MacOS Extended format or APFS format as they are more compatible with Apple systems.

1. Reasons for Formatting Your Mac

The reasons which lead to formatting the Mac hard drive are listed below:

  • When you are giving your Mac away.
  • If you want to change the format of the disk such as Windows to Mac format.
  • When the drive can't be read by Mac.
  • When you are trying to resolve a disk error or working issue which can't be repaired.
  • If the macOS installer doesn't see the disk or can't install it properly.
  • If the macOS installer states that you can't install the volume as it is a part of Apple RAID.

2. Benefits of Mac Formatting

Despite the reason for formatting, there are various benefits of carrying out the task too. The advantages of formatting the Mac hard drive include:

  • It will prevent unexpected system crashes and extend the file of storage media.
  • It will improve hard drive performance.
  • It will prevent data theft as all the important data is deleted without leaving a trace.
  • Formatting also fixes glitches and software conflicts in the system.

When you are about to format Mac hard drive, it is vital that you have a complete understanding of the Mac file system format too.

3. When to Format or Reformat Mac?

Under normal situations, you only format Mac as the intention is to wipe away the data and files from Mac. It is a low-level formatting process that only involves erasing the data on the system. It doesn't overwrite the existing data or remove it completely. The traces of the data are still left even after formatting.

But when you change a file format system of a drive, it is called reformatting. The process is accompanied by the deletion of data on the drive as the format changes, the files saved on the drive becomes irrelevant. As you reformat MacBook Pro or any other version, a partition map is created on the selected drive and an appropriate file system is applied which works with Mac such as OS X Extended (Journaled) file system. It is considered as a high-level formatting process.

So, you only need to decide whether you want to use the drive for other data or simply want to free up space on the drive. Once you understand the difference, it will be easier to decide whether you prefer to reformat Mac or simple formatting.

Related: Further, read and get to know the methods to format the USB drive on Mac.

Part 2. How to Format Mac in 3 Ways?

We have gathered up a list of methods on how to reformat/format Mac without any hassle. You can use any of the listed methods according to your requirements.

1. Reinstall Your Mac OS:

It is very well-known that reinstalling the Operating System deletes every data and setting on the system. Luckily, you can install the Mac OS from the Apple server or the recovery partition in your drive whenever you want. This will format HDD on Mac and you will be able to use it as new.

  1. Reboot your Mac and while it is starting up the press and hold the Command + R keys until you see the Apple logo on the screen.
  2. A macOS utility window will pop-up on the screen and you will see several options on the screen. You obviously want to format Mac HDD; therefore, you will have to choose the Disk Utility option first.
  3. When the Disk Utility window opens up, click on the Erase tab and make sure that the format is compatible with the system. Then hit the Erase button at the bottom and wait while the drive is cleaned.
  4. Now quit Disk Utility and get back to the OS X utility screen. Click on the Reinstall macOS option and install the OS from the Apple server or a bootable disk you have.
  5. Enter the Apple ID is required and wait while the OS is reinstalled on your system.

Now, you can set up Mac once again as you want. The main advantage of using this method is that you can wipe the drive securely and restore the original version of macOS from the internet. Plus, you get to install the latest compatible macOS on your system.

2. Erase Mac Hard Drive

When you erase a hard drive, you basically format NTFS on Mac and change the format to a compatible one like AFPS or Mac OS X Extended (Journaled).

  1. Reboot the Mac and press Command + R keys during startup until you hear a chime. Wait as the OS X utility window appears on the screen.
  2. Switch to the Erase tab and select the volume which you want to erase. If you have no partition, then select the main hard drive.
  3. Choose the format as Mac OS Extended (Journaled) and ensure that the GUID Partition Map Scheme is used.
  4. You can choose whether you want the fastest erase or most secure erase under the Erase Free Space option. Drag the slider according to your preference and hit the Ok button.
  5. Finally, click on the Erase button and the Disk Utility will erase the entire drive in a while.

When you use this method to format Mac, so are only erasing the data and files on the system without making any changes in the OS.

3. Wipe Mac SSD

When you are trying to wipe the Mac Solid State Drive, you need to remember that the Mac SSD is the best-integrated circuit you can get your hands on. As it uses flash memory, the information is retained on the drive more firmly than other Storage Media. Therefore, you will have to use the Cryptographic-Erase instead of standard erase for Mac SSD to format Mac disc.

  1. While rebooting your Mac, press and hold the Command + R keys to enter the Recovery mode. You will see an Apple icon or hear a chime when you enter the Recovery mode.
Related: Go there and get more approaches to booting Mac into Recovery Mode.
  1. When the OS X utility window appears on the screen, choose the Disk Utility option.
  2. In the Disk Utility window, specify the drive that you want to delete and click on the Erase option.
  3. Select the Mac OS Extended (Encrypted) format under the format list. Then press the Erase button and set a password for the encrypted partition. Make sure that you use an easy password as you are most likely to need it soon enough.
  4. Let the drive get erased and turn into an encrypted format. Once the process finishes, again access the Disk Utility and change the format to Mac OS Extended (Journaled).
  5. When you press the Erase button, open the Security option in the pop-up window and you will see the secure erase option. The level of erasing determines the security, i.e. 35 Pass Erase is the most secure option.
  6. Finally, press the Ok button and proceed with the wiping process.

The main advantage of using this method is that will blank the slate securely. There will be no data left on the SSD whatsoever.

Video Tutorial on How to Format a USB Flash Drive on Mac

Part 3. How to Recover Formatted Data on Mac?

When you are trying to format Mac windows, it is obvious that you are going to lose some important files. But there is no need to panic; we can deal with loss using Recoverit Data Recovery software for Mac. This tool is specially designed to retrieve the lost data on your system.

Recoverit - The Best Mac Formatted Recovery Software

  • Recover various data on Mac or Mac-connected devices.
  • Scan and preview the files before you recover the data.

After you learn how to format Mac, it is important that you know how you can get the files back on your Mac. Here is the guide you need to follow:

Step 1: Select a location

Run the program and specify a location from where the files were deleted. In case you don't know where the files were located, choose the 'I can't find my partition' and hit the Start button.

Step 2: Scan the location

The software will scan the drive and display the results on the screen sorted out according to their format. You can also pause the scan at any time.

Step 3: Preview and Recover

Format External Drive Windows 10

Select the files that you want to recover and have a preview of the files. You can perform a selective recovery of the files, select as many as you want, and hit the Recover button at the bottom of the interface.

Disk

In this way, you can easily get your documents that were disappeared back on Mac. In case if the quick scan was not able to fulfill your requirements, then you can do a deep scan as well. Recoverit would extract data from your Mac's storage. While the deep scan would take more time than the first scan, the results would also be far better.

Part 4. Tips for Formatting a Mac

The long-time users know that NTFS or exFAT format on Mac are not compatible. These formats are more suitable for Windows users. Hence, unless you want to transfer the files from Windows to Mac, it is advised to not use these formats on Mac. Here are some other tips related to formatting Mac that will come in handy:

  • The Erase option in the Disk Utility with OS X El Capitan and later performs formatting of a drive and erasing of volume under the same name. So, you can use the Erase command for both tasks.
  • Make sure that you create a backup of the data already present on the drive as you might end up losing it permanently.
  • Choose between the format APFS or Mac OS Extended format carefully.
  • To find out the current format of the drive, you can look into the System Information. The file system column on the Storage sidebar displays the current file format.
  • It is advised not to change the built-in APFS-format into Mac OS Extended under any situation.

Conclusion

In this article, you almost learned everything on how to format HDD on Mac. You can choose the method as per your requirements. And if somehow you end up losing some important files, Recoverit is here to help you as it can recover data from the formatted hard drive. So, if your friends, family, or close ones need help with formatting Mac, forward the guide to help them.

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