It does not use the USN Journal (like WizTree does). It uses a standard directory traversal. This means it is accurate but slightly slower than modern "instant" scanners.
During setup, uncheck "Include TreeSize in Explorer context menu" unless you want right-click delays in Windows Explorer. Also, disable "Check for updates on startup" to prevent nag screens. 8. Conclusion TreeSize v4.7.1.525 is a piece of software archaeology that remains functionally excellent. It does one thing—analyzes disk space—and does it without bloat, telemetry, or subscription fees.
While the newer versions offer prettier charts and cloud integration, the 4.7.x branch represents peak efficiency for local storage scanning. If you have an offline PC, a local server, or an external HDD full of mystery data, this classic version is still a reliable scalpel in a world of software sledgehammers.
9/10 Rating (for use on Windows 11 in 2025): 6/10 (functional but dated) Disclaimer: JAM Software continues to develop TreeSize actively. For security and modern features, purchase the latest version. This article is for educational and legacy support purposes only.
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