Treesize V7.1.5 -

Note: TreeSize v7.1.5 does not support Windows 7 or 8.1. Use version 6.x for older OS.

This version sharpens the duplicate file search engine. It now uses byte-by-byte comparison as a default for critical data, and a faster hash-based comparison for general cleanup. Combined with the "old files" filter (e.g., "Show me all .tmp files older than 180 days"), TreeSize v7.1.5 is the ultimate tool for compliance with data retention policies.

TreeSize is the gold standard for visualizing and managing storage on Windows systems. Version 7.1.5 represents a mature, refined release in the v7 branch, balancing powerful new features with the rock-solid stability that system engineers demand. Unlike basic Windows Explorer, which shows folder sizes superficially, TreeSize scans drives, directories, and even cloud storage to build an interactive, granular map of exactly where your space has gone. treesize v7.1.5

Version 7.1.5 is specifically noted for patch improvements over earlier v7 releases, focusing on performance optimizations for scanning network drives, enhanced dark mode compatibility, and critical bug fixes for the export module.

You might be asking, "I’m on 7.1.4. Do I need 7.1.5?" The answer is yes, especially for Windows 11 22H2 and 23H2 users. Note: TreeSize v7

Microsoft’s recent updates changed how the Recycle Bin and system volume information are reported. TreeSize v7.1.5 patches a critical issue where the tool could misreport "Free Space" on volumes larger than 4TB using the NTFS compression flag. In v7.1.4 and earlier, a 10TB volume might show 2TB of "Unknown" space. Version 7.1.5 correctly parses the new FSCTL_GET_VOLUME_BITMAP structures.

Furthermore, v7.1.5 introduces full support for Windows 11’s Dev Drive (ReFS variant). Older versions would crash when scanning ReFS Dev Drives; 7.1.5 handles them gracefully. For those unfamiliar, TreeSize is a powerful utility

The output will display directories and their sizes in a tree-like format. For example:

.
├── dir1 (10.0 MB)
│   ├── file1 (1.0 MB)
│   └── file2 (9.0 MB)
├── dir2 (20.0 MB)
│   ├── subdir1 (5.0 MB)
│   │   └── file3 (5.0 MB)
│   └── file4 (15.0 MB)
└── file5 (5.0 MB)

For those unfamiliar, TreeSize is a powerful utility that visualizes disk usage. Instead of staring at a bland list of folders in File Explorer, TreeSize renders an interactive treemap or detailed column view that immediately highlights the largest directories and files. Since the 1990s, it has been the gold standard for storage analytics.

TreeSize comes in two primary flavors:

TreeSize v7.1.5 refers to the entire family, but this article focuses on the core engine shared by the Professional and Personal editions.