checking file system on c：

hecking  file system on c:
the type of the file system is NTFS.
one of your disks needs to be checked for consistency. you may cancel
the disk check, but it is strongly recommended that you continue.
windows will now check the disk.
chkdsk is verifying files(stage 1 of 3).....
file verification completed.
chkdsk is verifying indexes(stage 2 of 3)....
74 percent completed. index verification completed
chkdsk is verifying security descriptors (stage 3 of 3).....
100percent completed.
inserting an index entry with id 8068 into index $ sii of file 9.
repairing the security file record segment.
100 percent completed.
repairing the security file record segment
cleaning up 5119 unused index entries from index $ sii of file 9.
cleaning up 5119 unused index entries from index $ sdh of file 9.
security  descriptors.