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I found this answer:

I've tried a few differnt terminal commands posted in various places, but THIS one worked for me (Mac Mini 2013, Paragon NTFS driver v9.5, External Seagate NTFS drive):

Go to Applications - Utilities - Terminal

Type in:

/usr/bin/mdutil -i on /Volumes/NTFS_DRIVE
(Enter)
/usr/bin/mdimport /Volumes/NTFS_DRIVE
(Enter)

Where NTFS_DRIVE is the name of your NTFS external drive. Put quotes before and after the drive name if your drive name has spaces in it.

But I don't usually like messing around in Terminal so is there a way of undoing this if it doesn't work.
 
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