Outlook Duplicate Remover — Technical Specs

System requirements, supported formats and trial limit for Outlook Duplicate Remover.

System Hardware & OS Support Matrix

Operating System Windows 11, Windows 10, Windows 8.1, Windows 7 (64-bit), Windows Server 2016–2025, macOS Sequoia (15), macOS Sonoma (14), Apple Silicon M1/M2/M3/M4 & Intel x86-64

Processor / CPU 1 GHz Intel/AMD or Apple Silicon M-Series (M1–M4)

Memory (RAM) 4 GB RAM minimum (8 GB recommended for 50GB+ PST files)

Disk Installation Space 100 MB free disk space for installation

Deep Architecture Specifications

Source & Volume Support

Target File Systems NTFS, ReFS, APFS, HFS+, exFAT, FAT32, Network SMB/NFS

Supported Storage Directories Microsoft OneDrive (Personal & Business), SharePoint Sync, Local SSDs, External USB, NAS

Long Path Support Full Win32 Unicode support up to 32,767 characters (bypasses MAX_PATH 260 limit)

Files On-Demand Awareness Inspects cloud hydrate status to prevent accidental multi-gigabyte cache downloads

Deduplication & Matching Engine

Content Comparison Algorithm 3-stage fast hash pipeline (Byte Size Clustering → 4KB Header Checksum → Cryptographic SHA-256)

Photo & Image Matching Exact SHA-256 matching + Perceptual visual comparison for burst photos and resized social images

Auto-Selection Presets Keep Oldest, Keep Newest, Keep Largest, Prioritize Specific Folder Path

Supported File Categories Photos (RAW, HEIC, JPG, PNG), Videos (4K, MP4, MOV), Docs (PDF, Word, Excel), Archives (ZIP, PST)

Accidental Deletion & Safety Vault

Safety Deletion Mode Configurable Quarantine Vault, OS Recycle Bin / Trash, or Permanent Wipe

One-Click Restoration Instantly restore quarantined duplicates back to their original folder paths

Audit Reporting Export comprehensive CSV and PDF logs documenting reclaimed storage and removed file paths

Privacy & Data Boundary Processing runs locally on your computer. File metadata and content hashes never leave your local system.

Supported Source & Target Formats

Input Source Formats (0)

Input formats and direct connection sources are documented in the product guide.

Output Target Destinations (0)

Export destinations and target profiles are documented in the product guide.

Free trial limit

Scan & Preview Only

Free trial: scan and preview duplicate candidates. Removal and deduplication require a paid license.

Download Free Trial

Free trial: scan and preview duplicates. Cleanup requires a paid license.

Download Trial Installer