Format Drives For Mac



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

  1. Format Usb For Mac And Pc
  2. Format Drive For Mac And Windows
  3. Format Drive For Mac Os X

This is an article for Mac, it is erasing a hard drive from a Mac command line, it is not a Windows tutorial. You can, however, format a Windows hard drive from a Mac if you connect the Windows hard drive to the Mac and format it through Disk Utility, or the command line as described above. Just bought a 4TB Segate Drive for my Mac to use with Time Machine. When I try to use disk utility. Connect the hard drive or USB key to the Mac Launch Disk Utility, located in Applications Utilities Locate the drive name from the left hand side of Disk Utility and click on it Click on the “Erase” tab across the top.

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

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.

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

Format Drives For Mac

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)

Format Usb For Mac And Pc

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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

Format Drives For Mac

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.


Format Drives For Mac

Are you planning to sell your Mac and you need to delete the files? Is your Mac’s hard drive defective? Are you planning to convert your hard drive into an external storage unit? Or is your newly bought hard drive pre-formatted for Windows? Whatever the reason, the process on how to format a drive on Mac is one of the easiest solutions you can learn.

It is easy to format your hard drive on Mac using the built-in Disk Utility. However, in cases where you have files and documents still on the drive, re-formatting needs to be your last resort. Try cleaning up your hard drive first by using 3rd party cleaning tools. This will temporarily delete files, unwanted documents, and unnecessary cache files within your unit. And if you really decide to format or re-format the drive, make sure to back up everything first. Formatting a drive is one of the permanent Mac solutions that can totally erase all of your device’s content.

Steps To Format A Drive On Mac

Before you start the process, you need to be aware of the different kinds of Mac file systems and format types. Browse through the information below:

  • APFS (Apple File System) – This file system is the default format for Macs running on High Sierra. It is new, faster, more efficient, and more reliable. However, you won’t be able to read or write on this drive unless you’re also running High Sierra. Plus, it only works on SSDs and flash storage.
  • MacOS Extended (Journaled) or HFS+ – If your Mac is not running High Sierra, the default file system will be MacOS Extended. Windows can also read HFS+ drives but cannot write to the drive.
  • MS-DOS FAT or FAT32 – If you regularly share drives between PC and Mac, then this format is perfect for you. Some of the drawbacks of this file system are the 4GB file limit, it has no security, and it is prone to disk errors.
  • ExFAT – both Windows and Mac can read this file system and it can store files more than 4GB.
  • NTFS – This file format is for Windows but Macs can only read but not write on it.

To format your drive, follow these steps:

Format Drive For Mac And Windows

  • Open Finder and click Applications.
  • Choose Utilities and then open Disk Utility. You can also use Spotlight to open Disk Utility. All you need to do is press Command + Space and type in Disk Utility.
  • The Disk Utility window will show you a list of all the drives on your Mac.
  • Choose which drive you want to erase.
  • Click Erase.
  • A window will pop up asking for the new drive name, format and scheme. Type in your new drive name.
  • Disk Utility automatically chooses the file format for your new drive but you can choose which format to use by clicking the Formatting options.
  • Once you’ve chosen the format, select GUID Partition Map for Scheme.
  • Click the Security Options button to choose how you want the drive to be formatted. The slider goes from Fastest to Most Secure. Fastest means that the header information will be removed but the underlying files will be intact and hidden. This will overwrite the drive once. By sliding to the right, your next option is to overwrite the drive three times. The farthest option to the right is the Most Secure option, which will overwrite the drive seven times. The amount of time needed to format the drive depends on what option you choose, the most secure being the slowest.
  • Click Erase again. A progress bar will appear showing how the formatting is going and an estimate of how long it will take to complete and the last step would be to copy your files back to your new drive.

Format Drive For Mac Os X

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