What does NTSTATUS 0xC00001A0 (STATUS_SECURITY_STREAM_IS_INCONSISTENT) mean?

 
Previous Next
STATUS_SHORT_NAMES_NOT_ENABLED_ON_VOLUME STATUS_INVALID_LOCK_RANGE

STATUS_SECURITY_STREAM_IS_INCONSISTENT

File security metadata on the volume needs file-system repair

NTFS stores shared security-descriptor information in internal metadata rather than duplicating every descriptor independently. An inconsistency in that stream can affect access checks or security-descriptor operations even when ordinary file data remains readable.

This is a volume-integrity condition, not a request to rewrite one file’s ACL blindly. Preserve evidence, inspect file-system events, and use supported repair tooling on the affected volume.

What to inspect

  • Determine whether security queries fail across multiple files or one metadata region.
  • Review storage health and NTFS events before scheduling repair.
  • Run chkdsk in the appropriate mode and restore affected security metadata from backup if necessary.

References


Looking for a different code? Search another status or error code.