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With the help of free tool MiniTool Partition Wizard as well as Mac Disk Utility, you can easily increase/decrease the size of Bootcamp partition without deleting Windows. Twitter new skills However, here we also want to share another tool, MiniTool Mac Data Recovery, for you since you cannot ensure absolute data security all the time.

Stellar Partition Manager. Stellar Partition Manager is a disk utility software which conveniently manages partitions including the BOOT volume on your Mac OS X hard drive. It now resize Boot Camp. It is the most powerful Mac volume manager that enables you to perform any partitioning operations like resizing, deleting, formatting, hiding/revealing a partition — except merging. Sep 07, 2017  Disk Utility for macOS Sierra: Partition a physical disk using Disk Utility You can partition a storage device into several partitions, each of which acts as a separate volume. Partitioning a storage device divides it into individual partitions, which are listed as separate volumes under the Devices section in the Finder sidebar.

External hard drives and external solid state drives come pre-formatted and ready for use. Internal HDD and internal SSD drives do not ship pre-formatted and will need to be Partitioned and formatted before being used.

Please note the instructions do not differ when formatting different capacity sizes, this is not capacity specific.

Western Digital does not recommend multiple partitions due to potential corruption of the Partition table. The partition table is used to display each partition within the Operating System and if this becomes corrupted it will lead to data loss. Please contact Microsoft or Apple for more support.

• APFS formatted volumes can be read by a macOS High Sierra (10.13), but not by a macOS Sierra (10.12) or earlier.
  For more information, please refer to Apple KBA ID HT208018 - Prepare for APFS in macOS High Sierra
• 
  
• If the following message occurs during the format procedure, MediaKit reports not enough space on device for requested operation. Operation failed.., please refer to Answer ID 20270: macOS Disk Utility Error 'MediaKit reports not enough space on device for requested operation'
• 
  
• For instructions to convert a drive to (APFS) Apple File System Format on macOS High Sierra (10.13), please refer to Answer ID 9968: How to Convert a WD External Drive to Apple File System (APFS) Format

How to Partition and Format a Drive on Windows 10 and 8.1

Partitioning a hard drive means preparing it to be used by the Operating System (OS), creating a Volume for the OS to use. Formatting, however, deletes the content of a volume to clean it, and assigns a file system to it so that data can be moved into and out of the volume. Both processes are normally done together.

Windows 10 includes a built in utility known as Disk Management that can be used to partition and format a hard drive. To partition and format the drive with Disk Management, follow these steps:

1. Right-click on Start, the Windows logo on the bottom-left of the screen, and click Disk Management.
   
2. In the Disk Management window, the lower pane will display a list of available drives. Identify the drive that needs to be partitioned and formatted, and make sure that all critical data on this drive has been backed up elsewhere. If there is already a partition on the drive, the bar above that drive will appear blue. If there is no critical data on the drive, or the data has been successfully backed up, right-click the bar and click Delete Volume.

   Important: If Disk Management shows the drive as Not Initialized, the drive will have to be initialized. For assistance initializing a hard drive, please see Answer ID 18824: How to initialize or write a signature to a secondary hard drive or Solid State drive in Windows.

   
   
3. If there is no partition and data on the drive, it will appear as Unallocated, with a black bar on top. Right-click the Unallocated space or the black bar, and click New Simple Volume.
   
4. The Welcome to the New Simple Volume Wizard will open. Click Next to proceed.
   
5. Choose the volume size and click Next. By default, the maximum disk space is already selected and it is recommended to leave it at the maximum disk space.

   Note:

   To create multiple partitions, select or type a specific number of megabytes (MB) for the first partition and continue to the next step. Once done with this process, the remaining space will display as unallocated space. Now, create another New Simple Volume in the remaining unallocated space for the next partition. For example, on a 2TB drive, set the volume size to 1000000 (1 TB) and continue to the next step. When done, begin the New Simple Volume process again and select the remaining capacity, the unallocated space, for another 1TB partition.

   
   
6. Assign a drive letter to represent the volume being created, and click Next. By default, this is the next available letter.
   
7. Next is the File System, which controls how the data is read and written. Set the file system to NTFS, which is the default Windows file system, and leave the Allocation unit size to Default. The Volume Label field can be customized in order to give the volume a desired name, such as My Book or WD Black 1. Check the box labeled Perform a quick format and click Next.
   
8. Click Finish to begin formatting the drive.
   
9. When complete, the drive will appear with a blue bar as in the image below.
   

How to Partition and Format a Drive on Windows 8 or 8.1

Partitioning a hard drive means preparing it to be used by the Operating System (OS), creating a Volume for the OS to use. Formatting, however, deletes the content of a volume to clean it, and assigns a file system to it so that data can be moved into and out of the volume. Both processes are normally done together.

Windows 8 includes a built in utility known as Disk Management that can be used to partition and format a hard drive. To partition and format the drive with Disk Management, follow these steps:

1. Right-click on the lower-left corner of the desktop screen and click Disk Management.
   
2. In the Disk Management window, the lower pane will display a list of available drives. Identify the drive that needs to be partitioned and formatted, and make sure that all critical data on this drive has been backed up elsewhere. If there is already a partition on the drive, the bar above that drive will appear blue, which indicates the drive is already formatted and may contain data. If there is no critical data on the drive, or the data has been successfully backed up, right-click the bar and click Delete Volume.
   

   Important: If Disk Management shows the drive as Not Initialized, the drive will have to be initialized. For assistance initializing a hard drive, please see Answer ID 18824: How to initialize or write a signature to a secondary hard drive or Solid State drive in Windows.

   
   
3. If there is no partition and data on the drive, it will appear as Unallocated, with a black bar on top. Right-click the Unallocated space or the black bar, and click New Simple Volume.
   
4. Click Next to proceed.
   
5. Choose the volume size and click Next. By default, the maximum disk space is already selected and it is recommended to leave it at the maximum disk space.

   Note:

   To create multiple partitions, select or type a specific number of megabytes (MB) for the first partition and continue to the next step. Once done with this process, the remaining space will display as unallocated space. Now, create another New Simple Volume in the remaining unallocated space for the next partition. For example, on a 2TB drive, set the volume size to 1000000 (1 TB) and continue to the next step. When done, begin the New Simple Volume process again and select the remaining capacity, the unallocated space, for another 1TB partition.

   
   
6. Assign a drive letter to represent the volume being created, and click Next. By default, this is the next available letter.
   
7. Next is the File System, which controls how the data is read and written. Set the file system to NTFS, which is the default Windows file system, and leave the Allocation unit size to Default. The Volume Label field can be customized in order to give the volume a desired name, such as My Passport or WD Black 1. Check the box labeled Perform a quick format and click Next.
   
8. Click Finish to begin formatting the drive.
   
9. When complete, the drive will appear with a blue bar as in the image below.
   

How to Partition and Format a Drive on Windows 7 and Windows Vista

Windows includes a built in utility known as Disk Management that can be used to partition and format a hard drive. To partition and format the drive with Disk Management, follow these steps:

1. Click on Start and right-click Computer.
   
2. Click on Manage.
   
3. A window called Computer Management will open, displaying two panes. On the left-side pane, under Storage, click on Disk Management. This will load Disk Management on the right-side pane. Disk Management will proceed to display all the hard drives detected by Windows. The window may need to be maximized in order to see all the drives listed.
   
4. The lower pane will display a list of available drives. Identify the drive that needs to be partitioned and formatted. It typically has a black bar indicating unallocated space.

   Important: If Disk Management shows the drive as Not Initialized, the drive will have to be initialized. For assistance initializing a hard drive, please see Answer ID 18824: How to initialize or write a signature to a secondary hard drive or Solid State drive in Windows.

   
   

   If there is already a partition on the drive, the bar above that drive will appear blue. this indicates that the drive is already formatted and may contain data. Make sure that all critical data on this drive has been backed up elsewhere. When ready to proceed, right-click on the blue bar and choose Delete Volume. The bar should now be black.

   
   
5. Right-click on the unallocated space or the black bar to see a menu of available options, and click on New Simple Volume.
   
6. The Welcome to the New Simple Volume Wizard will appear. Left-click on Next to proceed to the next screen.
   
7. Choose the volume size and click Next. By default, the maximum disk space is already selected and it is recommended to leave it at the maximum disk space.

   Note:

   To create multiple partitions, select or type a specific number of megabytes (MB) for the first partition and continue to the next step. Once done with this process, the remaining space will display as unallocated space. Now, create another New Simple Volume in the remaining unallocated space for the next partition. For example, on a 2TB drive, set the volume size to 1000000 (1 TB) and continue to the next step. When done, begin the New Simple Volume process again and select the remaining capacity, the unallocated space, for another 1TB partition.

   
   
8. Assign a drive letter to represent the volume being created, and click Next. By default, this is the next available letter.
   
9. Next is the File System, which controls how to data is read and written. Set the file system to NTFS, which is the default Windows file system, and set Allocation unit size to Default. The Volume Label field can be customized in order to give the volume a desired name, such as My Passport or WD Black 1. Check the box labeled Perform a quick format and click Next.
   
10. Click Finish to begin formatting the drive.
    

    Note:

    If an error message is received stating that Windows is unable to unmount the drive, this means that there is a program or service currently reading or writing data on the drive. Determine what program is accessing the drive and shut it down, and then try again. Please see Answer ID 16330: Unable to safely remove (unmount) a WD external drive in Windows for assistance with this error under Windows.

    
    
11. The listing for the drive (Disk 3 in the picture below) will say Formatting as it formats the drive. This process may take a few seconds.
    
12. When the drive is done (Disk 3 in the picture below), the bar will be blue and the drive will say Healthy.
    

How to Partition and Format a Drive on Windows Vista

Partitioning a hard drive means preparing it to be used by the Operating System (OS), creating a Volume for the Operating System to use. Formatting, however, deletes the content of a volume to clean it, and assigns a file system to it so that data can be moved into and out of the volume. Both processes are normally done together.

Windows Vista includes a built in utility known as Disk Management that can be used to partition and format a hard drive. Please see Answer ID 18075: How to access Disk Management in Windows for more information.

Please follow the steps outlined below:

Free Partition Tool For Mac

1. The lower pane will display a list of available drives. Identify the drive that needs to be partitioned and formatted. It typically has a black bar indicating unallocated space.

   Important: If Disk Management shows the drive as Not Initialized, the drive will have to be initialized. For assistance initializing a hard drive, please see Answer ID 18824: How to initialize or write a signature to a secondary hard drive or Solid State drive in Windows.

   
   

   If there is already a partition on the drive, the bar above that drive will appear blue. this indicates that the drive is already formatted and may contain data. Make sure that all critical data on this drive has been backed up elsewhere. When ready to proceed, right-click on the blue bar and choose Delete Volume. The bar should now be black.

   
   
2. Now right-click on the unallocated space or the black bar to see a menu of available options, and click on New Simple Volume
   
3. The Welcome to the New Simple Volume Wizard will appear. Left-click on Next to proceed to the next screen
   
4. Choose the volume size and click Next. By default, the maximum disk space is already selected and it is recommended to leave it at the maximum disk space.

   Note:

   To create multiple partitions, select or type a specific number of megabytes (MB) for the first partition and continue to the next step. Once done with this process, the remaining space will display as unallocated space. Now, create another New Simple Volume in the remaining unallocated space for the next partition. For example, on a 2TB drive, set the volume size to 1000000 (1 TB) and continue to the next step. When done, begin the New Simple Volume process again and select the remaining capacity, the unallocated space, for another 1TB partition.

   
   
5. Assign a drive letter to represent the volume being created, and click Next. By default, this is the next available letter
   
6. Next is the File System, which controls how to data is read and written. Set the file system to NTFS, which is the default Windows file system, and set Allocation unit size to Default. The Volume Label field can be customized in order to give the volume a desired name, such as My Passport or WD Black 1. Check the box labeled Perform a quick format and click Next
   
7. Click Finish to begin formatting the drive
   

   Note:

   If an error message is received stating that Windows is unable to unmount the drive, this means that there is a program or service currently reading or writing data on the drive. Determine what program is accessing the drive and shut it down, and then try again. Please see Answer ID 16330: Unable to safely remove (unmount) a WD external drive in Windows for assistance with this error under Windows.

   
   
8. The listing for the drive (Disk 1 in the picture below) will say Formatting as it formats the drive. This process may take a few seconds
   
9. When the drive is done (Disk 1 in the picture below), the bar will be blue and the drive will say Healthy
   

How to format a drive on macOS 10.14.x (mojave)

1. Open Disk Utility. Please See Answer ID 3823: How to access Disk Utility on macOS
2. From the left Column chose the External drive (My Passport, My Book, etc..)
3. Click the Erase Button
4. Type the drive new Name (My Passport, My Book, etc..)
5. Click the Format drop down
6. Choose a new Format: Mac OS Extended (Journaled)
7. Click Erase button
8. When finished, the drive will be formatted and repartitioned successfully. Click the Done button

How to partition and format A DRIVE ON macOS 10.13.x (High Sierra)

1. Open Disk Utility. Please See Answer ID 3823: How to access Disk Utility on macOS
2. In the top menu bar, go to View, and choose Show All Devices
3. Click the eject button next to the drive volume (My Passport, etc)
   The drive Volume will now be greyed out
4. Select the drive (WD My Passport _____ Media, etc)
5. Click the Erase button
6. Choose a new Format: Mac OS Extended (Journaled)
   Choose Scheme: GUID Partition Map
7. Type the drive new Name
8. Click the Erase button
9. When finished, the drive will be formatted and repartitioned successfully. Click the Done button

Steps for macOS 10.11.x (El Capitan) and macOS 10.12.x (Sierra)

1. Open Disk Utility. Please See Answer ID 3823: How to access Disk Utility on macOS
2. Click the Eject button next to the external hard drive volume (My Passport, etc)
   
3. The drive will now be greyed out
4. Click the Erase button
5. Choose a new Format: Mac OS Extended (Journaled)
   Choose Scheme: GUID Partition Map
6. Type the drive new Name
7. Click the Erase button
8. When finished, the drive will be formatted and repartitioned successfully. Click theDone button

How to Format or Partition a Drive on Mac OSX 10.9.x (Mavericks) and 10.10.x (Yosemite)

Partitioning a hard drive means preparing it to be used by the Operating System (OS), creating a Volume for the OS to use. Formatting, however, deletes the content of a volume to clean it, and assigns a file system to it so that data can be moved into and out of the volume. Both processes are normally done together.

Mac OSX 10.9.x, and 10.10.x include a built in utility known as Disk Utility that can be used to partition and format a hard drive. To partition and format the drive with Disk Utility, follow these steps:

1. Double left-click on the Mac HD, the internal Mac hard drive visible on the top-right corner of the desktop screen. Choose Applications from the left-side panel. While in there, open Utilities, and lastly double-click on Disk Utility.
   
2. Disk Utility will now be open. In the left-side pane, choose the drive that is to be partitioned and formatted. Typically there are two listings for each drive unless more than one partition exists on a particular drive. Choose the drive listing that is farthest to the left for the drive that will be formatted. It is usually directly above the name of the drive. In the example below, the one to be selected would be 495.78 GB WD My Passport 0830 Media.
   
3. After selecting the appropriate drive, additional options will appear on the right-side pane. Click on Partition.
   
4. In the Partition area, click on the drop-down box under Partition Layout and select 1 Partition.
   

   Note:

   Partitioning a drive is only necessary if planning to use multiple partitions on the drive. It's recommended using a single partition in most cases, if the primary objective is to simply prepare the drive for use with the computer, no partitioning is required. No further action is required.

   
   
5. Click on the drop-down next to Format and from the drop-down menu select Mac OS Extended (Journaled). This is the format that the drive will be formatted to.
   
6. In the Name area, a drive name can be given to the drive by just typing in the desired name or drive label.
   
7. Click the Options button and choose Apple Partition Map. Then, click on Ok. Lastly, click on Apply.

   Important: If the Mac computer being used is an Intel-based Mac, Apple recommends to use the GUID Partition Table instead.

   
   
8. A confirmation box will appear, reminding users that partitioning and formatting the drive will erase all information that is on the drive. Make sure that all critical information on the drive is backed up elsewhere before continuing. If not, copy the data to another location. When ready, click on Partition.
   
9. The disk will be unmounted before being formatted.
   

   Note:

   If an error message is received stating that the drive is unable to be unmounted, this means that there is a program or service currently reading or writing data on the drive. Determine what program is accessing the drive and shut it down before trying to format the drive again. If the error message persists, restarting the computer may resolve the issue. If additional assistance is required, please Contact Us.

   
   
10. The drive is now formatting and at the bottom of the Disk Utility panel a Status Bar displaying the name of the drive, the format that's being applied to it, as well as the given name. When finished, the bar will go away and the drive will now be listed on the desktop.
    

How to Format or Partition a Drive on Mac OSX 10.7.x (Lion) and 10.8.x (Mountain Lion)

Partitioning a hard drive means preparing it to be used by the Operating System (OS), creating a Volume for the OS to use. Formatting, however, deletes the content of a volume to clean it, and assigns a file system to it so that data can be moved into and out of the volume. Both processes are normally done together.

Partition Software

Mac OSX 10.7.x, and 10.8.x include a built in utility known as Disk Utility that can be used to partition and format a hard drive. To partition and format the drive with Disk Utility, follow these steps:

1. Double left-click on the Mac HD, the internal Mac drive. Choose Applications, then Utilities, and double-click on Disk Utilities.

   Note:

   If the screen does not look like the one in the picture below, the folder view may be set to a different one. Click on the Columns button (it's highlighted in blue in the screenshot) in the upper left corner of the window to change to the same view used here.

   
   
2. In the far left pane, choose the drive that is to be partitioned and formatted. Typically there are two listings for each drive, unless that particular drive has more than one partition in it. Choose the drive listing that is farthest to the left for the drive that is to be formatted. It is usually directly above the name of the drive. Once the drive has been selected, click on the Partition tab.
   
3. Under Volume Scheme click the drop-down box and select 1 partition.
   
4. Now, click the Options button and choose Apple Partition Map, then click on Ok.

   Important: If the Mac computer being used is an Intel-based Mac, Apple recommends to use the GUID Partition Table instead.

   
   
5. Click on the drop-down next to the Format option and change the Format to Mac OS Extended (Journaled). A name can also be given to the drive by typing it into the Name box. When done, click on Apply.
   
6. A box will come up warning that formatting and partitioning the drive will erase all of the information that is on the drive. If the information on the drive is no longer needed, then click on Partition. If the data on the drive is still needed, it will need to be copied to another location before proceeding.
   
7. The drive is now formatting, and a status bar will be displayed at the bottom of the Disk Utility window. This status bar will say formatting the disk, and gives the name of the drive, the format it is applying, and the name that was specified for it. When it is done, this bar will go away and the drive should now be listed on the desktop.
   

If additional assistance is required, or more information is needed, please Contact Us. Do not use the answer rating below to report technical issues.

Formatting A WD Drive To Be Compatible With Both Windows and Mac OSX

Please see Answer ID 20821: How to format a WD hard drive to exFAT or FAT32 file system for assistance formatting a drive to be used on both a Windows PC and a system running Mac OSX.

Last updated: Jan. 9, 2017

Although Disk Utility is a simple to use disk management tool built into all Macs, it has limited functions when it comes to advanced partitioning. For example, it won't work when you want to resize Boot Camp partition to arrange free disk space, or when you need to partition an external hard drive only to find the option is grayed out.

We'd like to share with you some better Mac partition managers, which aim to help you deal with customized partitioning needs for both Macintosh HD (or Boot Camp) and any external hard drives. At the end of the day, your Mac hard drive will be more organized and efficient.

QUICK PICKS: 2 GREAT CHOICES

Partition Software For Mac Free

**Below, you'll find our expert reviews, but you can also click the links above to get the app.

Why You Need a Third-party Mac Partition Software?

Having extra space in your Mac hard drive helps many things. You are able to store more precious photos and videos, and your Mac is likely to run faster with a decent amount of free disk space. However these days your hard drive can be used up faster than ever, especially if you consistently sync iDevice (iPhone, iPad, iPod) data to your Mac. Thanks to technology innovation, we can quickly capture high-quality pictures and videos wherever we go. But those media files are much larger and need more space to store.

If your primary boot partition, either Macintosh HD or Boot Camp, is getting full, the macOS (or Windows in Boot Camp) operating system is going to run sluggishly. The best solution is to rearrange space between volumes by resizing either Macintosh HD or Boot Camp. In this case, you have to rely on a third-party Mac partition manager, as Disk Utility won't work. Other times you want to make several partitions or adjust the size on an external hard disk, you are suggested to try Disk Utility, only to find the partition option has been grayed out, or it takes forever to complete during the erasing process. Chances are a professional software would save you time and efforts.

In short, you'll need a third-party program when Apple's built-in Disk Utility fails to meet your partition needs.

Mac Partition Management Apps: What to Look for?

• Security: the program has to be 100% virus-free and malware-free, also it shouldn't contain any other bundled or embedded plugins that inject ads while you are browsing online. These years adware has been notorious among many Mac applications. Also, the software must perform a non-destructive operations without hurting the original data saved on your partitions.
• Functionality: a great Mac disk/partition app should do what Disk Utility can't. Otherwise, there's no point wasting time downloading an app. More specifically, the software should be able to resize Boot Camp partitions if your Mac has dual operating system (macOS + Windows), work with both NTFS and HFS volumes, create bootable media which can be used to perform partitioning on boot drives, and/or other standard features like create/delete/format any partition easily.
• Compatibility: it must be compatible with all common Mac OS X versions, including latest El Capitan and macOS Sierra.
• Ease of use: the program should be relatively easy to operate, quick in the partition resizing/deleting process.
• Technical Support: dealing with hard drive operations may need extra technical skills, any mis-operations could cause unexpected data loss. Therefore, a good Mac partition software provider should be able to respond user requests.

The Best Partition/Disk Manager for Mac

Partition Software For Mac

Please note: we've tested the tools recommended below and they are 100% secure to download and use. Also, they earned our trust with powerful features and intuitive interfaces.

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Stellar Partition Manager (Mac)

Itool For Mac

It is the most powerful Mac volume manager that enables you to perform any partitioning operations like resizing, deleting, formatting, hiding/revealing a partition — except merging. What we like most is its ability to create a bootable media that can be used to partition the main boot drive, though you're advised to backup your data before proceeding. The software has been upgraded to version 3.0 which supports resizing Boot Camp partitions.

Sd Partition Tool For Mac

Paragon Camptune X

Primarily designed to rearrange space between Macintosh HD and Boot Camp, Campture X works amazingly fast in resizing all types of NTFS and HFS based disk volumes. The best part is that Paragon even works in El Capitan and Sierra with System Integrity Protection, dwarfing other alternatives. The trial version allows you to redistribute 2GB for free. Camptune is the most efficient disk manager for resizing Boot Camp partitions on your Mac.

Andreas is an Apple and Microsoft fanboy who works with his Mac and lives with a PC at home. Icloud activation lock 10.3.3 removal tool for mac. While he is not reading technology journals, you’ll probably find him playing online games with friends or hiking in the wild.