Best paid NTFS Apps, Free Drivers, and useful Tips and Tricks to mount NTFS Drivers for fully free access will be reviewed and shared to mac users. This blog covers all about how to write to NTFS Drivers (USB or External Drivers) on MacOS. The reason behind this? The file system used by Macs (HFS+) is different than the file system used in Windows (NTFS). This prevents you from saving, editing, copying, or deleting anything stored on your drives using your Mac. By default, Macs can only read files from Windows-formatted external hard drives, but not write to them. Sharing data between a Mac running macOS or OS X and PCs running Windows may not be that straightforward.