Anyone with CHKDSK expertise? Do I have anything to worry about?

For those with CHKDSK expertise, are there any concerns with below report?

What would have caused this check?


Checking 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.

Stage 1: Examining basic file system structure ...
The attribute of type 0x80 and instance tag 0x6 in file 0x1c
has allocated length of 0x800000 instead of 0x1000000.
Deleting corrupt attribute record (0x80, $Corrupt)
from file record segment 0x1C.
260352 file records processed.
File verification completed.
6843 large file records processed.
0 bad file records processed.

Stage 2: Examining file name linkage ...
4137 reparse records processed.
325386 index entries processed.
Index verification completed.
0 unindexed files scanned.
0 unindexed files recovered to lost and found.
4137 reparse records processed.

Stage 3: Examining security descriptors ...
Cleaning up 2161 unused index entries from index $SII of file 0x9.
Cleaning up 2161 unused index entries from index $SDH of file 0x9.
Cleaning up 2161 unused security descriptors.
Security descriptor verification completed.
32518 data files processed.
CHKDSK is verifying Usn Journal...
Usn Journal verification completed.
CHKDSK discovered free space marked as allocated in the volume bitmap.

Windows has made corrections to the file system.
No further action is required.

116657623 KB total disk space.
107281664 KB in 132322 files.
88448 KB in 32519 indexes.
0 KB in bad sectors.
334739 KB in use by the system.
65536 KB occupied by the log file.
8952772 KB available on disk.

4096 bytes in each allocation unit.
29164405 total allocation units on disk.
2238193 allocation units available on disk.

Internal Info:
......................................................

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


I've removed internal info but don't think there's anything personally identifiable here?

EightK said:

For those with CHKDSK expertise, are there any concerns with below report?

No. All the detected errors are logical errors, not physical drive errors.

What would have caused this check?

An abrupt shut down, such as a loss of power or a BSOD.

While in use, there is a 'dirty' bit set on a drive which is cleared on an orderly shut down. If this bit it still set at the next boot then it triggers a chkdsk such as this one, saying "One of your disks needs to be checked for consistency....".

It has found errors to the file system and corrected them the disk it's self shows no hardware errors. The normal cause of this is unexpected shut down or system crash were data was in memory but didn't get written to the disk

Reevaluate the drive in several weeks with chkdsk /r /v to see whether there are or are not recurrent frequent problems with the drive file system.