I am trying to take backup of image files on someones computer who har tried to reinstall Windows before taking back-up, but only keeps getting some 210 image thats only Windows operating system related (believes that's from the small partition).

The drive consists of a NTFS-partition (I believe this is Windows re-installation partition or an installation process gone wrong ... don't have the computer at the moment) and where the files are found. The rest is unallocated, and I've therefore chosen "whole disk" as option.

I've used PhotoRec many times on my own internal, external and thumb-drives without problems, did also a test with unallocated space without problems. What am I doing wrong? Should I format the unallocated space into NTFS first, or have I gotten some options wrong?

Thanks for any help.