As far as I know, Linux ignores NTFS permissions when given raw access to a disk, or rather, acts as thought it’s SYSTEM or some other high-level user, working around anything Windows might have set.
Worst case, you could still move your important files to an exFAT partition (or into an archive) where permissions don’t apply.
LMDE6 still uses ntfs-3g as far as I can tell, so I’m going to assume that regular Mint does too.
lsmod
reports nothing like ntfs, and the tried and tested, if no longer developed, ntfs-3g suite is installed.Things might change as and when the kernel driver is more stable for writing. I’m sure more bleeding-edge distros are already running the kernel driver, but then, those who run those distros are deep into Linux and NTFS is not really something they deal with regularly.