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ERROR_SECURITY_STREAM_IS_INCONSISTENT
The volume security stream is inconsistent
ERROR_SECURITY_STREAM_IS_INCONSISTENT indicates that Windows found contradictory or damaged security metadata on a volume. The problem is below an individual access check: the file system cannot reliably interpret the stream that stores security descriptors.
Typical context
- A file or directory operation fails after an unclean shutdown or storage fault.
- Backup, restore, antivirus, or indexing software encounters unreadable security information.
- The same volume reports other integrity or NTFS-related errors.
Recommended response
Stop write-heavy work on the affected volume, preserve important data, and run the file-system repair procedure appropriate for that volume. Review storage health and system event logs before returning the disk to normal service.
References
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