Error Message:

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Unable to read the security descriptors data stream.

Explanation:

NTFSCHK was unable to read the Security Descriptors Data Stream file ($SDS). This file contains the Access Control List (ACL) and owner information for all files on the NTFS volume. The file is either corrupted, or a hardware problem may have occurred on the disk drive.

User Action:

Run chkdsk again. If you continue to get this message, backup the drive and perform a low level format. Restore the file system from the backup. If the problem persist, replace the hard drive.