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  1. Disk Management Windows 10 Format
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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.

If you are looking to format a disk that will be shared with Windows users, the MBR scheme and MS-DOS (FAT) are the best choices. For drives used with Intel-based Macs only, the GUID Partition Map should the option to go for. If you don't see the partition map scheme option, it is likely because Disk Utility doesn't list all volumes.

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.

  • Disk Utility will automatically choose the format for you. This may be APFS, or it may be Mac OS Extended (Journaled) depending on how the drive is currently formatted and whether you using macOS.
  • ” The format Apple support for Mac owners for Time machine is Mac OS Extended (Journaled). FAT32: The FAT32 file system (MS-DOS FAT) released in 1977. FAT32 is the cross-platform format for Windows and Mac OS X. The format is good for handling the files between both OS under 4GB size. The USB drivers come with the FAT format by default.
  • Disk Utility is a built-in application in Mac OS or OS X. It allows Mac users to easily format hard drive partition or volume. You have no experience in formatting hard drive partition on Mac? Don’t worry, it is super easy and quick. Just launch Disk Utility on your Mac, then you will see all the hard drives and external devices on your Mac.

NO.1 Mac Hard Drive Format Tool – AweEraser for Mac

Disk Management Windows 10 Format

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.

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When you attach a storage disk to a Mac with the purpose of erasing or repartitioning it, you'll be presented with the option of selecting one of the three available partition maps: GUID Partition Map, Master Boot Record, and Apple Partition Map. In this article we will explain what a partition scheme is and which one to pick when formatting a drive.

What Is a Partition?

The fixed-sized subset of a disk drive treated as an individual unit by the operating system (in our case macOS) is defined as a partition. On every drive there are multiple partitions, and for this you will need a partition table or partition map – maintained by the operating system – to detail the status of the partitions.

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GUID Partition Map

This is a standard for the layout of the partition table on a storage disk using globally unique identifiers (GUIDs). As part of the Unified Extensible Firmware Interface (UEFI) standard, GUID is a bootable standard for systems with EFI firmware such as macOS. Non-Intel Macs won't support this bootable standard, hence the only option available to them is the Apple Partition Map (APM).

Apple Partition Map

Used on disks formatted for use with 68k and PowerPC Macs, the Apple Partition Map is the scheme that defines how the data is organized. Starting with OS X Tiger, both APM and GUID partitions can be used for accessing volumes, but PowerPC-based Macs can only boot from APM disks. While Intel-based Macs generally boot from a GUID Partition Table, they are all able to start the operating system from APM and Master Boot Record (MBR) using the BIOS-Emulation called EFI-CSM.

Master Boot Record

Introduced by IBM in 1983 to support the 10MB hard disk, the Master Boot Record is a type of boot sector developed for use with IBM PC systems. It is currently used for Windows partitions formatted as MS-DOS (FAT) or ExFAT.

Choosing a Partition Map

Now you know which partitioning map is which, the next time you insert an external drive or want to partition the built-in storage disk of the Mac, it will be easier to choose between the available options.

When formatting or erasing a volume with Disk Utility, you'll see a format menu prompt asking you to choose from:

  • Mac OS Extended (Journaled)
  • Mac OS Extended (Journaled, Encrypted)
  • Mac OS Extended (Case-sensitive, Journaled)
  • Mac OS Extended (Case-sensitive, Journaled, Encrypted)
  • MS-DOS (FAT)
  • ExFAT
  • APFS (macOS High Sierra’s new file system)
  • APFS (Encrypted)
  • APFS (Case-sensitive)
  • APFS (Case-sensitive, Encrypted).

Be aware that APFS is compatible only with macOS High Sierra and higher, so earlier versions of OS X or macOS won't mount an APFS volume. If you want maximum reach, Mac OS Extended (Journaled) is the right choice.

Format Disk Windows 10

Below the file system format, the Disk Utility dialog box will list another contextual menu, the partition map scheme, which gives you another great tool to create targeted volumes. If you are looking to format a disk that will be shared with Windows users, the MBR scheme and MS-DOS (FAT) are the best choices. For drives used with Intel-based Macs only, the GUID Partition Map should the option to go for.

If you don't see the partition map scheme option, it is likely because Disk Utility doesn't list all volumes. This will prohibit Disk Utility from erasing the disk and show you an error message. To address this issue, you should click on the View button located in the top-left side of the Disk Utility dialog box and select “Show All Volumes”. From that point on, Disk Utility will ask for your partition map preference, and the formatting process will be smoother.

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