Drive shows lock icon, even though permissions say read/write?

Those are utilities for changing the POSIX file ownership and permissions. NTFS is not a POSIX filesystem and does not support or store that kind of information. Please see… :arrow_down:

If an NTFS filesystem is mounted read-only in GNU/Linux, then it’s usually because it was used by Windows with the Windows fast boot (hybrid sleep) enabled, which does not properly shut down the filesystems. Upon trying to mount such a filesystem in GNU/Linux, the kernel will detect this open state as filesystem damage and will mount the filesystem read-only so as to prevent further damage.