Understand WizTree Treemap Blocks

Short answer: A treemap is a visual starting point; verify a selected block against its path and measured size.

By DiskAnalyzer editorial resource · Published 2026-10-05 · Documentation reviewed 2026-10-05

When this guide is useful

A project with thousands of small files may dominate a folder but be less visually striking than one large recording. Use both the visual map and the folder table when deciding what deserves attention.

Recommended workflow

Select a conspicuous rectangle.
Read the corresponding filename and location.
Inspect neighboring files in the same folder.
Return to the table for an exact value.

Limits and precautions

A block's color is not a safety rating or an instruction to remove the file.

Keep a useful record

Record the drive or folder, scan time, application version and the measurement you used. Keep observations separate from proposed changes. If a result leads to a cleanup, record the file owner, backup status and actual free-space change. This makes the result easier to review and helps explain differences in a later scan.

Quick review checklist

Question	What to record
What did you inspect?	The exact volume or folder, not just the PC name.
What action is justified?	Return to the table for an exact value.
What could go wrong?	A block's color is not a safety rating or an instruction to remove the file.

Next steps

If the result is unclear, preserve the current report and narrow the investigation to one folder or application. Make one approved change at a time, then repeat the relevant measurement. Avoid presenting a predicted saving as a measured outcome.

Sources and verification

Prepared from public documentation and practical storage-audit reasoning. No hands-on Windows test or independent binary inspection was performed for this publication. Menu names and package requirements can change; check the developer documentation for your installed version.