sudo chmod 666 /etc/fstab
sudo nano /etc/fstab
LABEL=drivename none ntfs rw,auto,nobrowse
Make sure to replace drivename with the name of the drive. Press Control-O to save the file and Control-X to exit nano. Change mod back to 644. After that unmount and remount. Access the disk via Shift+Cmd+G, /Volumes. Don't forget to unmount before detach.