How to Write to NTFS Drives on a Mac
 

Mac OS X can read from NTFS drives, but it can’t write to them unless you use one of the below tricks. 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.

http://www.howtogeek.com/236055/how-...ives-on-a-mac/