Dear Friends,
Please take your backup before playing with your Hard disk.
Please use this command in terminal
1.Sudo nano /etc/fstab
2.LABEL=NAME none ntfs rw,auto,nobrowse
If your hard disk name has space for example Seagate Backup Plus Drive
then you need to enter like this
LABEL=Seagate\040Backup\040Plus\040Drive none ntfs rw,auto,nobrowse