Hey ral-clan,
I know this was previously mentioned, but one of the UNIX ways of backing up drives is to use Disk Dump or dd.
Open a terminal, and type gparted, then when you get the partition number for your NTFS partition (/dev/sda# if SATA/SCSI or /dev/hda# if IDE) then close out and drop back to the shell.
Type the following:
$ mkdir ~/backups
$ dd if=$yourpartition# of=~/backups/$backupname bs=4096 conv=noerror
Example:
$ dd if=/dev/sda2 of=~/backups/archbang20140407 bs=4096 conv=noerror
This will copy a disk image equal to size of your partition to a directory called backups in your home directory.
It takes awhile but this method has a few benefits:
1. If you lose all your data or mess up that partition, setting up a new partition then running dd to copy the data back (if is the source and of is the destination, so you can do it backwards) this will result in a (mostly) turnkey solution, assuming your bootloader is already setup
2. The image you made COULD be run in a VM if needed.
3. You can restore the image from any UNIX system, this command will work on Linux, BSD, Solaris, Mac OS X, and apparently there is a dd port for Windows too, never used it myself, however.