I need recommendations for a software for de-duplication.
Runs on Windows
Ability to find duplicate archives: files that have exactly the same content (and, so, the same size). Names, paths or dates are irrelevant.
Options to perform automatic actions (like to keep the newest, the oldest, or files in some path) and also the manual action "do nothing, prompt for action". This last case (manual action) could be performed on more than one file
Option to create symlinks: instead of simply removing all-but-one ocurrence, create symlink to one version.
Graphical interface (and not only command prompt)