EF Duplicate Files Manager Review: Features, Pros & Cons

EF Duplicate Files Manager — The Complete Guide to Finding & Removing Duplicates

What it is

EF Duplicate Files Manager (by EFSoftware) is a Windows utility that scans drives and folders to locate duplicate files by name, size, and/or content, then helps you review and remove them to free disk space and tidy file collections.

Key features

• Scan modes: compare by name, size, and byte‑by‑byte content (checksum)
• Flexible targets: local drives, external drives, network locations, archives (ZIP, RAR, 7‑Zip, IMG/ISO, etc.)
• Filters & exclusions: file types, size/date ranges, folder exclusions
• Results view: sortable lists with file path, size, date, and preview (for images)
• Batch actions: delete, move, rename duplicates; export/save results (TXT/CSV/HTML)
• Backup/safety: optional backup or recycle‑bin use before permanent deletion
• Portable option: available in some distributions
• Trial/limitations: paid licence with a trial; unregistered builds may limit visible results

When to use it

• Free up storage occupied by duplicate photos, music, documents, or installers
• Clean up backups and synced folders with repeated copies
• Reduce clutter before backup or migration

Step‑by‑step workflow (recommended defaults)

1. Back up important data (or enable backup option in the program).
2. Update the program to the latest version.
3. Select target folders/drives; exclude system folders (Windows, Program Files).
4. Choose comparison mode: start with name+size for speed, re-scan matches with content (byte‑by‑byte) for accuracy.
5. Run the scan.