Yet Another Duplicate File Remover — Lightweight, Fast, Reliable

Summary — Yet Another Duplicate File Remover (YADFR)

• What it is: A free, open-source duplicate-file finder for Windows (often called YADFR).
• Source / status: Historically hosted on SourceForge; project appears discontinued (last activity ~2013).
• License: GPLv3.
• Key features: Bit-for-bit duplicate detection, very fast, lightweight, portable build available.
• Limitations / cautions: Minimal safeguards and limited options compared with modern tools; UI and usability criticized by some users; can be confusing for nontechnical users (checked vs selected items, symbolic links treated as separate files). Not recommended for novices without careful review of results.
• Typical use case: Quickly find and remove exact duplicate files to free disk space on Windows machines when you accept manual review risk.
• Alternatives: dupeGuru, Duplicate Cleaner, AllDup (if you want actively maintained tools with more features and safety).

If you want, I can provide: download links, step-by-step usage instructions for YADFR, or a comparison with one of the alternatives.