How to use Windows formatted external hard drive in iMac?

I'm interested to get a new iMac M4, but I'm a Windows user.


Can I use my existing Windows formatted external hard drives to read and write in iMac?


What can I do with my existing files and documents in external hard drives?


Please help. Thank you!

iMac (M4)

Posted on Dec 1, 2024 1:27 AM

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Question marked as Top-ranking reply

Posted on Dec 1, 2024 2:33 AM

Macs can read NTFS-formatted drives – but cannot write to them without the aid of third-party drivers.


You might want to copy files from NTFS-formatted drives to Mac-formatted ones. There are two main Mac formats.

  • APFS – a newer filesystem suited for SSDs
  • HFS+ (Mac OS Extended) – this has more compatibility with old Macs, and may still be a better choice for mechanical hard disks (it tries harder to avoid creating fragmentation)

In either case, you would want format a drive as NON-case-sensitive – and for Mac OS Extended format, you would want to choose the Journaled option.


Another possibility is to install a third-party NTFS filesystem driver, such as Paragon NTFS .

1 reply
Question marked as Top-ranking reply

Dec 1, 2024 2:33 AM in response to Win2Macnhelp

Macs can read NTFS-formatted drives – but cannot write to them without the aid of third-party drivers.


You might want to copy files from NTFS-formatted drives to Mac-formatted ones. There are two main Mac formats.

  • APFS – a newer filesystem suited for SSDs
  • HFS+ (Mac OS Extended) – this has more compatibility with old Macs, and may still be a better choice for mechanical hard disks (it tries harder to avoid creating fragmentation)

In either case, you would want format a drive as NON-case-sensitive – and for Mac OS Extended format, you would want to choose the Journaled option.


Another possibility is to install a third-party NTFS filesystem driver, such as Paragon NTFS .

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How to use Windows formatted external hard drive in iMac?

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