A problem with NTFS Format

Yep , were you using the hard disk on some other PC previously or on some other OS , this may happen .
try any of these options.
1.Try connecting the hard disk via usb using and external casing
2.Try to run a CHKDSK on your windows OS over those hdisks , will restore files i hope.
3.Use Easy recovery Pro to recover files , I have a good liking over it personally and have experienced .
Wish you good luck