SpaceSnifferInspect NTFS Alternate Data Streams
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
- Select an NTFS volume.
- open scan options.
- enable the ADS option where available.
- inspect results and compare with a normal scan..
How to verify the result
The application detects ADS support and includes relevant streams when requested.
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 inspect ntfs alternate data streams?
Select an NTFS volume.
How do I check the result?
The application detects ADS support and includes relevant streams when requested.
What should I avoid?
Many volumes and removable file systems do not support ADS; disabled options are expected there.
Related Windows topics
- Verify a SpaceSniffer ZIP Download
- Use SpaceSniffer Without Installing
- SpaceSniffer on Windows 11
- SpaceSniffer on Windows 10
Sources and further reading
Get the portable Windows application
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