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How can I write to NTFS on Mac?
How can I write to NTFS on Mac?
  • Oka Assist
  • 2026-02-13 10:12:46


How can I write to NTFS on Mac?

You can find the answer in this article if you have similar questions as those below. How to enable NTFS to write permission on macOS? Can macOS Catalina write to NTFS? Can the M1 chipset support NTFS Disk? Can you format USB to NTFS on Mac? What is the best free alternative NTFS tool to Paragon NTFS? What is the best free alternative NTFS app to Tuxera? What is the best free alternative tool to Fuse / NTFS-3g? What is the best free alternative tool to iBoysoft NTFS?

What is NTFS?

The NT file system (NTFS), also called the New Technology File System, is a process the Windows NT operating system uses to efficiently store, organize, and find files on a hard disk. NTFS is used most by Microsoft Windows. But not for Mac. By default, it can read the files on the NTFS file system, but you can not edit or write files on the NTFS disk.

Why can't macOS support NTFS writable?

NTFS was first used in Windows NT 3.1 in 1993. And it is still used in windows 10, windows 11. And Microsoft is not providing NTFS as an open-source standard. So Apple would not support this, and as we all know why Apple should support the leading competitor's file system.

How can macOS write NTFS?

You can enable NTFS write permission by some command in macOS, but I strongly suggest you not try this. Apple already disables this after macOS 10.14. So I would suggest you try some 3rd party app for this.

NTFS Disk Pro by Omi

The best free NTFS disk manager, most of the NTFS apps are paid, and they are all quite expensive. This is the only one that is free and quite stable. Omi NTFS Disk Pro also supports Apple Silicon M1 Chip. You can mount and unmount the NTFS disk on your Mac.

Besides the NTFS feature, it even supports repair and format disk functions. And all of these functions are free.

The Omi NTFS also is available on Mac AppStore. You can download it from the product page.

Paragon NTFS

It is a paid NTFS app, $19.95, and offers a ten-day free trial. But it did not support the repair feature. This is a good option if you are willing to pay the developer.

Tuxera NTFS for Mac

It is even more expensive than Paragon, $31, and offers 14 days trial. The feature is the same as Paragon.

Fuse for macOS

It is a free, open-source project. Before macOS 10.13, this is an excellent free NTFS tool with some tech knowledge, you will find out how to install it, but after 10.14, it is hard to install successfully. I spend two days, and I am giving up now. You can skip this solution if you have no idea what Hombrew is, what ruby is, or what NTFS-3g is.


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Commonly Tried but Ineffective Solutions Users typically attempt the following methods, most of which fail to solve the problem at its root: Manually deleting directories such as ~/Library/Caches and ~/Library/Logs Using third-party cleaning tools like CleanMyMac or similar utilities Uninstalling and reinstalling Keynote Reinstalling macOS via “Reinstall macOS” These approaches are limited because they do not address the real sources behind System Data inflation. III. What Exactly Is “System Data”? It is important to understand that: System Data is not a real folder, but rather a collection of data that macOS cannot accurately categorize. System Data may include, but is not limited to: macOS system temporary files Application and system caches Portions of the user Library (~/Library) Files Spotlight cannot classify Large resource files inside application packages Local caches from cloud services (such as iCloud or OneDrive) iPhone / iPad backup files Residual data from deleted user accounts Time Machine local snapshots As a result, System Data cannot be reliably inspected or reduced through simple cache deletion or Finder-based browsing. IV. Key Cause #1: Time Machine Local Snapshots Consuming Disk Space How Local Snapshots Work Even when no external drive or NAS is connected, macOS will: https://cdn.okaapps.com/resource/图3.webp Create a Time Machine local snapshot every hour Retain snapshots from the last 24 hours by default If the backup destination remains disconnected, keep local snapshots associated with the most recent full backup These snapshots: Are based on the APFS file system Do not appear as regular files Are entirely counted under System Data In some cases, local snapshots can consume tens or even hundreds of gigabytes. https://cdn.okaapps.com/resource/图4.webp Why They Sometimes Cannot Be Deleted When Time Machine uses a NAS or network storage device as its backup destination, the following situations may occur: The NAS was previously disconnected The network path or IP address changed The backup was not re-“claimed” by the system As a result, macOS may treat these snapshots as belonging to an unreachable backup destination, leading to: tmutil deletion failures Errors such as Stale NFS file handle Snapshots that cannot be reclaimed, causing persistent disk usage V. Key Cause #2: How Keynote and Similar Apps Amplify System Data Keynote itself is not malfunctioning, but its design inherently amplifies System Data usage: Keynote files are actually packages containing large numbers of resources These may include: High-resolution images Embedded videos Fonts Animation and transition assets Spotlight sometimes fails to correctly classify these resources, causing them to be grouped under System Data. For users who frequently create large, media-heavy presentations, steady growth in System Data over time is expected. VI. Effective Solutions (Prioritized) Solution 1: Verify and Restore Time Machine Backup Status (Recommended) Open Disk Utility From the menu bar, select Show APFS Snapshots Select the system Data volume Check whether a large number of Time Machine local snapshots exist If using a NAS as the backup destination: Reconnect the NAS Select the original backup in Time Machine settings Follow the prompts to claim the existing backup Once the backup relationship is properly restored, macOS can automatically manage and reclaim snapshot space. Solution 2: Use Disk Analysis Tools to Identify Real Space Usage It is recommended to use tools that analyze disk usage without automatically deleting files, such as: GrandPerspective EtreCheck The goal is to identify: Which files or directories consume the most space Whether disk usage is abnormally concentrated in specific areas Avoid relying on “one-click cleanup” tools. 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Long-Term Prevention Tips (for Keynote and Content Creators) Archive older Keynote projects to an external drive or NAS Avoid storing large volumes of presentation files locally for long periods Keep the Time Machine backup destination consistently available Avoid third-party tools that perform automated “system-level cleaning” Periodically monitor disk usage with analysis tools VIII. Conclusion Abnormally large macOS System Data usage is rarely caused by a single cache or log issue. Instead, it is typically the result of Time Machine local snapshots, application package resources, and inherited historical data structures working together. Only by understanding what System Data actually contains—and addressing the root causes—can disk space issues be resolved effectively and long-term.