Usn Journal - Компьютерный форум OSzone.net

при проверке дисков утилитой chkdsk.exe , в отчете сканирования стало появляться строка - (выделено жирным)

Тип события: Уведомление
Источник события: Winlogon
Категория события: Отсутствует
Код события: 1001
Дата: 29.03.2009
Время: 13:55:00
Пользователь: Н/Д
Компьютер: HOME-SERVER-20
Описание:
Checking file system on C:
The type of the file system is NTFS.

A disk check has been scheduled.
Windows will now check the disk.
Cleaning up minor inconsistencies on the drive.
Cleaning up 20 unused index entries from index $SII of file 0x9.
Cleaning up 20 unused index entries from index $SDH of file 0x9.
Cleaning up 20 unused security descriptors.
CHKDSK is verifying Usn Journal...
Usn Journal verification completed.
CHKDSK is verifying file data (stage 4 of 5)...
File data verification completed.
CHKDSK is verifying free space (stage 5 of 5)...
Free space verification is complete.

36965533 KB total disk space.
33882636 KB in 203427 files.
109704 KB in 18980 indexes.
0 KB in bad sectors.
389121 KB in use by the system.
65536 KB occupied by the log file.
2584072 KB available on disk.

4096 bytes in each allocation unit.
9241383 total allocation units on disk.
646018 allocation units available on disk.

Internal Info:
00 4f 04 00 d0 64 03 00 db 82 03 00 00 00 00 00 .O...d..........
62 55 02 00 01 00 00 00 64 0b 00 00 00 00 00 00 bU......d.......
04 b7 2f 10 00 00 00 00 8e 37 be c1 00 00 00 00 ../......7......
5e 27 59 17 00 00 00 00 b4 15 8d a1 02 00 00 00 ^'Y.............
98 08 f5 1e 00 00 00 00 c4 b4 e9 b2 03 00 00 00 ................
30 66 74 b3 00 00 00 00 b8 3a 07 00 a3 1a 03 00 0ft......:......
00 00 00 00 00 30 08 14 08 00 00 00 24 4a 00 00 .....0......$J..

Windows has finished checking your disk.
Please wait while your computer restarts.

ранее никогда не встречалась - почему ?