- Format External Hard Drive Mac
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- Format My External Hard Drive
- How To Format External Hard Drive
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After years of use, thousands of files and GBs of file fragments have been stored on your Mac hard drive. You may want to get rid of all this junk data and reuse your hard drive. Formatting is the easy solution to help you remove all data/traces on your Mac hard drive. Normally, once your hard drive is formatted, you will get a brand new hard disk drive. But, how to format a local/external hard drive under Mac OS? How to format a hard drive on Mac and permanently erase the data information on the hard drive? Don't worry. Here are two hard drive format software tools for Mac to help you securely format, reformat and erase hard drive, external hard drive, USB flash drive, and memory card under Mac OS.
Two Reliable Disk Formatting Software for Mac
Unlike Windows OS, Mac OS doesn't provide quick format tool. Fortunately, there are some Mac hard drive format software or smart disk formatting applications can help you securely and easily format, reformat, or erase hard drive under Mac OS. Here are two outstanding Mac hard drive format software tools you can rely on.
NO.1 Mac Hard Drive Format Tool – AweEraser for Mac
Please see below on how to reformat your external hard drive on Mac and Windows. DISCLAIMER: Please keep in mind that reformatting will result in the loss of all the data on the hard drive so make sure you back up your data elsewhere before starting. How to Reformat in Mac. Step 1: Make sure your external hard drive is attached and mounted to. The best ways to format an external drive for Windows and Mac. Compare the different options for formatting an external hard drive to work with Windows and Mac. And, no: the answer isn't always FAT32. Select the external hard drive (left; sorted Internal, External, and Disk Images) and click the Erase button. (optional) Select a single volume to keep the drive format and only erase that volume’s data. Enter a Name, select the Format and Scheme, and click Erase. For PC and Mac compatibility, select ExFAT (format) and Master Boot Record (scheme). Oct 16, 2019 The Best Format for External Hard Drives. If you want to format your external hard drive to work with Mac and Windows computers, you should use exFAT. With exFAT, you can store files of any size, and use it with any computer made in the last 20 years. Now that you know which format to use, check out our guide on how to format your hard drive on. Mar 31, 2020 If you buy a new external hard drive, you may notice that working between Mac and PC is an often difficult - but it doesn't need to be. We'll show you everything you need to know about the.
As a comprehensive data erasure tool, AweEraser for Mac can help you securely and permanently format a hard drive or device under Mac OS. It is pretty simple to use. So, it can help you quickly format, reformat and erase hard drive under Mac. First of all, free download AweEraser for Mac and install it on your Mac.
Outstanding Mac disk formatting features:
- Format hard drive, USB flash drive, memory card, SD card, digital camera, external hard drive, and other media device under Mac OS.
- Format and erase SSD under Mac OS.
- Reformat and erase hard drive/device under Mac OS.
- Permanently erase the data on the hard drive.
How to use AweEraser for Mac to format a hard drive or device on Mac? Actually, it is very simple. Just run AweEraser for Mac on your Mac. Select the mode 'Erase hard drive'. AweEraser for Mac will show all the hard drives and external devices on your Mac. Just select the targeted hard drive or device, then click on 'Erase' button. AweEraser for Mac will help you format the selected hard drive/device and erase all data, data traces, and fragments on the selected hard drive/device.
Mac hard drive formatting steps: Run AweEraser for Mac > Choose 'Erase Hard Drive' > Select hard drive > Click on 'Erase' button > Format the selected hard drive.
Please note that once the hard drive is formatted by AweEraser for Mac, all the data on the hard drive will be permanently erased, can't be recovered by data recovery software or manual data recovery service. So, please back up your important data to another hard drive before you use AweEraser for Mac to format your Mac hard drive.
The formatting process will not cause any damage to your hard drive or device. AweEraser for Mac will not shorten the service life of your hard drive/device. It just securely formats your Mac hard drive/device and permanently erases all the data. Then your hard drive/Mac computer/device is able to reuse, resold, recycled or can be safely donated or lent to other people.
NO.2 Mac Hard Drive Format Tool – Disk Utility
Disk Utility is a smart hard drive format tool built in Mac system. Just run it on your Mac, it will show all the hard drives and external devices on your Mac. Select the hard drive and click 'Erase', then Disk Utility will help you format and erase the hard drive or device. But, the formatted data by Disk Utility can be recovered by data recovery software.
The two hard drive formatting software for Mac can help you securely format hard drive or device under Mac OS. But both of them can't format the hard drive which the Mac OS is installed on because the Mac system doesn't allow other software to destroy the system. However, AweEraser for Mac can help you erase unused disk space of the system hard drive to help you permanently erase all already deleted data and history traces.
Related Articles
If you’ve run into issues with your hard drive, formatting is one of the first steps you should take to troubleshoot it. Formatting allows you to overwrite all the information on the hard drive, resetting the file structure and how the drive interacts with the operating system. It can also be used to prep a hard drive for use with another operating system.
In this guide on how to format external hard drives, we’re going to help you make sure your portable disk works with everything. We’ll show you how to format your hard drive on Mac and Windows computer operating systems, and explain key settings on both operating systems.
Before getting to that, though, it’s important to understand what hard drive formatting is. Let’s first talk about hard drive formatting, file systems and how formatting doesn’t necessarily erase all data from your drive.
What Is Hard Drive Formatting?
Most people associate hard drive formatting with erasing a hard drive. Though that’s true to a degree, it’s not the sole purpose of the process. Instead, formatting is used to get the hard drive to a state in which it can be used by the computer, which requires all written data to be erased from the drive.
The data isn’t erased completely, but we’ll touch more on that later. Most external drives come ready to use on your computer, but in rare cases, you’ll need to format your drive. In fact, that’s one of our recommended troubleshooting steps in our how to solve an external hard drive not showing up guide.
Outside of formatting for initial use, you may need to reformat your hard drive if you encounter errors. In the same way a fresh install of your OS can solve most issues, reformatting your hard drive is a critical step in troubleshooting problems. Beforehand, just be sure your files are backed up with an online backup service, such as Backblaze(read our Backblaze review).
Before getting into the formatting process, though, it’s important to go over what you’ll be formatting the drive with: a file system.
Format External Hard Drive Mac
File Systems
File systems are what operating systems use to store information on a storage device. Unfortunately, there isn’t a de facto file system that all hard drives use. The one yours uses largely depends on the drive and the computer OS you’re using. Because of that, we’re going to go over the most commonly used file system options so you’ll know what’s what.
- NTFS: This is what Windows uses by default. Like most file systems, NTFS is restricted once you move outside of Windows. You can read and write on Windows platforms, but macOS and Linux users will only be able to read data from an NTFS-formatted drive.
- ExFAT: This isn’t exclusive to any OS. Windows and macOS can read and write data to ExFAT. Though not as prevalent as NTFS, you’ll often find flash drives and external solid-state drives formatted to ExFAT out of the box because multi-platform support and the lack of file size restrictions make it an ideal choice for plug-and-play setups.
- FAT32: This is the older, uglier cousin of ExFAT. FAT32 also works across Linux, Windows and macOS, and in years past, it was the de facto option for flash drives. It can’t store files larger than 4GB, though, so it has fallen out of favor in recent years.
- HFS Plus: Similar to how NTFS is default file system for Windows, HFS Plus is the default file system for Mac operating systems. It’s limited on Windows machines, but Apple users will be able to read and write to HFS Plus-formatted drives without issues.
We hope it’s clear now why understanding file systems is important. If you’ve checked out a sideloading guide, such as our Kodi sideloading guide, you probably saw recommendations to format to ExFAT or FAT32. That’s because those file systems work across platforms while NTFS and HFS Plus don’t.
Whichever file system your hard drive is shipped with, that’s what you have to use if you don’t want to remove all information from the drive. Alternatively, you could dump the files from your drive to a cloud storage service, such as Sync.com, format the drive and put your files back on it (read our Sync.com review, and check out our cloud storage providers comparison).
How to Format External Hard Drives
Now that we have formatting and file system basics out of the way, it’s time to show you how to format your external drive. We’ll show you how to do it on Windows and Mac operating systems using the Samsung T5, which is one of the best external hard drives, as you can see in our Samsung T5 review.
We chose the T5 because it’s formatted to ExFAT out of the box, meaning it works with a Mac or Windows computer straight away.
How to Format Your External Drive on Windows
Formatting a hard drive on Windows is a simple affair, especially if you leave everything as default. That said, if you want to change settings, you’ll need to know the details of each.
Before getting to those, you have to find the drive you want to format by following these steps.
- Open File Explorer
- Navigate to “my PC”
- Right-click the drive you want to format
- Click “format”
Windows will then open the formatting wizard. We’re going to run through each setting in the wizard so you know which settings you need to change.
- Capacity: This shows the capacity of the drive. There’s a dropdown menu, but the full capacity of the drive is usually the only option unless you have partitions set up. If that sounds like gibberish, leave the setting on the default option.
- File System: This is the file system with which you want to format the drive. There’s a default file system — usually NTFS for internal drives and ExFAT for external — so it’s best to leave that. If you want to change the file system, you can do so here. It’s important to note, though, that internal drives can only be formatted to NTFS.
- Allocation Unit Size: The allocation unit size is how large each storage block is on the drive. In almost all cases, leaving the setting on its default is the best option, but you can read up on the math behind it if you’re trying to optimize your drive.
- Volume Label: The volume label is what you want the drive to be named after it has been formatted. If the volume label is unnamed, Windows will automatically assign it a name.
- Quick Format: The quick format box is toggled by default. That means Windows will delete the file structure of the drive, though the information is still accessible if you use hard drive forensics tools. Doing a full format takes longer, but it’ll overwrite your data and scan for bad sectors.
Though we went over the settings, the best thing to do is probably to leave them on their defaults. Once everything is set, all you need to do is click “start” and wait for the progress bar to fill.
How to Format Your External Drive on macOS
Formatting and dealing with hard drive-related matters, in general, is easy in macOS. Unlike Windows, macOS gives you the tools to format, partition, restore and repair your hard drive from a single screen that can be found in your utilities.
To find the screen, follow these steps.
- Open Finder
- Follow the path “/applications/utilities” and click “disk utility”
- Find your drive in the left-side menu and click it
- Click the “erase” tab on the main screen
- Select the file system you want to use and give the drive a name
After that, you’re done. macOS doesn’t give you as much control as Windows does, but as we explained, much of that control is irrelevant. The formatting process is simple, with Apple going as far as including step-by-step instruction above the options.
![Software Format External Hard Drive Mac Software Format External Hard Drive Mac](/uploads/1/2/6/2/126237636/128505835.jpg)
The only thing you may need to pay attention to is the security options. By default, macOS formats your drive the same way that a quick format does on Windows, meaning the file structure is erased, but the binary data is still there. You can fully erase everything by using the security options.
How to Fully Erase an External Hard Drive
As mentioned throughout this guide, formatting your external drive doesn’t erase all the information from it. Binary data needs to be written to the drive at all times, so instead of removing it, your OS deletes the file structure, meaning you can’t access the data on your drive.
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Software Format External Hard Drive Machine
For all intents and purposes, your information is erased. You can write new data to the drive, and your OS will show that all the space is available. If you’re disposing of a hard drive, though, someone can still access the data using a forensics tool. Essentially, those tools allow people to bypass the structure of the OS and piece together the files using the binary data.
As we said, the drive always needs to be filled with binary data. The only way to fully erase it is to overwrite what’s there with new binary data. Though the built-in utilities on Mac and Windows computer operating systems help, a hacker could reverse engineer the process to find the data on the drive.
Format External Drive Mac Os
There are few options to fully remove information. If you’re getting rid of the drive, a classic solution is to tap it a few times with a hammer to break the disks inside before recycling. If you need to remove data quickly and still want the drive to function, though, you’ll need a separate utility.
One of the most common is Darik’s Boot and Nuke. It’s an open-source project that rewrites the data on your drive using random processes to ensure it isn’t recoverable. You can boot to DBAN instead of your OS to start the process, which is ideal if you’re recycling or selling your computer.
Final Thoughts
We hope we’ve explained the differences between formatting and erasing an external drive. Formatting isn’t only used to get rid of data on a drive. It’s also used to make a drive compatible with a different OS. For example, The Western Digital My Book comes formatted to NTFS, but you can reformat it to ExFAT for use with macOS (read our Western Digital My Book review).
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Format My External Hard Drive
If you’re looking to add to your external drive repertoire, read our external hard drive reviews. There, you’ll find our favorite portable disks, including the SanDisk Extreme Portable SSD (read our SanDisk Extreme Portable review).
How To Format External Hard Drive
Why do you need to format your drive? Do you have any more questions about the process? Let us know in the comments and, as always, thanks for reading.