It’s just that the write support is simply not enabled by default. The trick involves some editing the /etc/fstab file which is ok for experienced Mac OS users. So when I did a little bit of research, I came upon the fact ( source) that from OS X Mountain Lion already includes BOTH read and write support for NTFS. For me, it was with a spare work MacBook where I didn’t really want to spend too much just to get the occasional need to write into an NTFS USB stick. I never faced an issue with the Paragon’s NTFS driver on my Mac. However, there are times when you might want an alternative free NTFS write support on Mac. While it costs $19.95 for a single seat license, it is the most robust solution that I’ve found thus far. In all of them, I have recommended using Paragon NTFS for Mac. We highly recommend paying for a third-party NTFS driver if you need to do this as the other solutions don’t work as well and are more work to set up.I’ve blogged quite a few times on the topic of getting full NTFS support on the Mac OS before. In fact, we’ve had it corrupt data before. It isn’t guaranteed to work properly and could potentially cause problems with your NTFS file system. However, it’s off by default and requires some messing around in the terminal to enable it. Apple’s Experimental NTFS-Write Support: The macOS operating system includes experimental support for writing to NTFS drives.

It’s slower than paid solutions and automatically mounting NTFS partitions in read-write mode is a security risk. Unfortunately, this take a bit of extra work to install, especially on Macs with the new System Integrity Protection feature, added in 10.11 El Capitan.

Free Third-Party Drivers: There’s a free and open-source NTFS driver you can install on a Mac to enable write support.

These are paid solutions, but they’re easy to install and should offer better performance than the free solutions below.

Paid Third-Party Drivers: There are third-party NTFS drivers for Mac that you can install, and they’ll work quite well.

There are several options for this, and you’ll need to choose one:

Write to ntfs on mac os sierra