How to partition a hard drive without formatting mac

Ability to manage disk partitions such as creating, deleting, and copying partitions, cloning disks and so much more. All Microsoft Windows comes with Disk Management, if you are logged in as an administrator, you can repartition your hard disk by using the Shrink feature in Disk Management. You can shrink an existing partition or volume to create unallocated disk space, from which you can create a new partition or volume.

Note that the terms partition and volume are often used interchangeably. Active Partition Manager is a freeware application that helps you to manage storage devices and the logical drives or partitions that they contain. You may create, delete, format and name partitions on your computer without shutting down the system. Most configuration changes take effect immediately. When you add a new hard disk or SSD to your system, you must format and partition it before you can use it. The best tool for the job is a full-featured disk partition manager, which can not only format and partition drives but repartition them.

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I would be inclined toward the Partition Wizard, the classic partition software. In this case, I want to create several new volumes to help me. Unfortunately, I am a green hand in computer and I don't know how to rebuild the new one. Having asked help from others and operated by myself, I find two efficient ways to create partition on hard drive.

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Let me show them one by one. Before all the operations, please ensure there is unallocated space and it must be separately displayed on the hard drive. If not, please try to generate the unallocated space by free partition manager. To begin with, please try to understand following conceptions since you may need them during the operations.

Primary partition: It is usually used to save the files and programs of operating systems. Meanwhile, it is the guidance for system booting. System files can only be stored on primary partition. Logical partition: It is the portion of extended drive. Once an extended drive has been created, you can set up it as many as possible. The minimum and maximum size that you can use to create a partition will be given to you after query in Disk Management.

You can decide the size of the created partition.

Partition the drive on a Mac

Unused letter is available for you to choose. Generally speaking, the system will default it for new drive. You need to format a new drive before you are able to store files there.


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Windows provides detailed format information during formatting process. NTFS has better security features, better recovery capabilities and file-level compression built-in.


  • Solution 1: Partition Hard Drive with Disk Management.
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  • How to Create Partition on External Hard Drive without Losing Data?.
  • Step 1: Right click "My Computer" and choose "Manage". Then, you will enter the computer management interface. Please choose the "Disk Management" on the left options to make sure if the unallocated space is existed in the disk.

    How to Share an External Hard Drive Between Mac and Windows | Digital Trends

    Step 2: Right click the unallocated space and select "New Simple Volume". Following, select "Next". There are three options: Primary, Extended or Logical Partition. Actually, the system will default the type of new volume. If the unallocated space is located in the primary drive's area, the new one will be primary one, while in extended drive area, it will be logical one.

    Step 3: Please following the wizard, finish the size, file system, drive letter step by step. After that, choose "Finish". Mentioned two methods are simple yet both of them are based on the existing unallocated space on the hard drive.