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Useful apps · WizTree

WizTree: Find Files That Use the Most Disk Space

Visualize drive usage by treemap and extensions to identify deletion candidate locations. This guide covers installation, practical steps, limitations, and how to stop using the app.

Published · Updated · FaultNote editorial policy

WizTree: Find Files That Use the Most Disk Space overview: When to use it, Install the official version, Try it, Use it safely, Turn it off or restore settings
An overview of this guide’s steps and checks, not a screenshot of the app.

Who this guide is for and what to prepare

  • First-time users of WizTree
  • People who want to check the storage location and safety of data while reducing manual work

What you need

  • Check the processing target and storage location, and preserve the original data in another location
  • Check the official distribution source, supported OS, and required permissions

When to use it

Visualize drive usage by treemap and extensions to identify deletion candidate locations.

Install the official version

  1. Install the official version from diskanalyzer.com and first scan the system drive by reading only.

Try it

Select the target drive and press [Scan]. Arrange the Tree View in order of Size. Select a large rectangle in the treemap. Right-click [Explore] to check the location and owned apps. Deletion can be done from the creator app or Windows storage settings.

  1. Select the target drive and press [Scan]
  2. Sort Tree View by Size
  3. Select a large rectangle in the treemap
  4. Right-click [Explore] to check location and owned apps
  5. Deletion can be done from the creator app or Windows storage settings.

Use it safely

Do not directly delete files under Windows or application management even if the display is large. Check the official license terms for personal and commercial use.

Turn it off or restore settings

Close WizTree when you have finished viewing the scan results. If you want to increase the free space, do not delete only the size from the results list, but select the operation that suits the source, such as games by uninstalling the launcher, apps through Windows uninstall settings, and personal files after confirming the backup.

Limitations and requirements

  • Do not directly delete files under Windows or application management even if the display is large. Check official license conditions for personal and commercial use
  • Check the current specifications in the official documentation and reconfirm on-screen what you want to delete or overwrite.

Frequently asked questions

Can I delete all large files?

No. Files managed by Windows or applications may be large but necessary for operation. Check the location and purpose, and delete from the original application or Windows management function.

Is this a license that can be used on a company PC?

WizTree has different conditions for personal use and commercial use. If you want to use it in your company, check the commercial license terms on the official website and prepare the necessary license.

Official sources and verification date

Sources checked: . Check the official sources below for changes to supported systems, plans and menus.

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