Windows · SpaceSniffer 2.2.0.27

Run SpaceSniffer as Administrator

Quick answer: Administrator access may let SpaceSniffer inspect folders inaccessible to a normal Windows user.

Use this workflow on an authorized Windows 10 or Windows 11 computer. SpaceSniffer shows a size-proportional view of storage; always inspect the source file in Windows before changing or deleting it.

Step-by-step workflow

  1. First scan normally.
  2. note any inaccessible paths.
  3. close the tool.
  4. right-click the executable and select Run as administrator.
  5. rescan only the necessary location..

How to verify the result

Previously inaccessible folders become measurable where access permissions permit.

Important limitationAdministrative privileges expose sensitive folders; do not modify system files while cleaning.

Why this matters

SpaceSniffer is a visualization tool, not a diagnosis of file necessity. The important outcome is an identifiable path and measurable file size, checked against the same Windows volume and with permission to inspect it. If the scan is incomplete, report that limitation instead of treating missing paths as zero bytes.

More targeted troubleshooting

If the result differs from what File Explorer reports, clear the filter field, allow scanning to finish and check the permissions of the specific directory. Repeat on a smaller known folder when you need to isolate a scanning limitation. Always distinguish a changed treemap view from an actual change in free space.

Frequently asked questions

What is the first step for run spacesniffer as administrator?

First scan normally.

How do I check the result?

Previously inaccessible folders become measurable where access permissions permit.

What should I avoid?

Administrative privileges expose sensitive folders; do not modify system files while cleaning.

Related Windows topics

Sources and further reading

Get the portable Windows application

Confirm the version, compatible architecture, package hash and provenance before executing a downloaded archive.

Read the download, checksum and setup instructions.