Sometimes dupeGuru selects files which it thinks are duplicates but in reality are not so be careful what you allow it to delete. However, it can still be confusing which files are duplicates and which are not. dupeGuru saves you time and does its job extremely quickly. However, if some duplicates are not as clear as others, dupeGuru uses a special algorithm which can mark out which files genuinely are separate and which ones are just similar thanks to the Power Marker.
