Question about hd health

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Question about hd health

Postby Venomus » 2020.03.22. 00:50

So recently I got an error in my event viewer "The device, \Device\Harddisk0\DR0, has a bad block." Health dropped to 86% and it said that it found 9 bad sectors on HDsentinel. I ran chkdsk and here are the results



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.

CHKDSK is verifying files (stage 1 of 5)...
414464 file records processed. File verification completed.
2889 large file records processed. 0 bad file records processed. 4 EA records processed. 105 reparse records processed. CHKDSK is verifying indexes (stage 2 of 5)...
511054 index entries processed. Index verification completed.
0 unindexed files scanned. 0 unindexed files recovered. CHKDSK is verifying security descriptors (stage 3 of 5)...
414464 file SDs/SIDs processed. Cleaning up 39 unused index entries from index $SII of file 0x9.
Cleaning up 39 unused index entries from index $SDH of file 0x9.
Cleaning up 39 unused security descriptors.
Security descriptor verification completed.
48296 data files processed. CHKDSK is verifying Usn Journal...
37633408 USN bytes processed. Usn Journal verification completed.
CHKDSK is verifying file data (stage 4 of 5)...
414448 files processed. File data verification completed.
CHKDSK is verifying free space (stage 5 of 5)...
64335362 free clusters processed. Free space verification is complete.
Windows has checked the file system and found no problems.

488282111 KB total disk space.
230247660 KB in 253602 files.
160540 KB in 48297 indexes.
0 KB in bad sectors.
532463 KB in use by the system.
65536 KB occupied by the log file.
257341448 KB available on disk.

4096 bytes in each allocation unit.
122070527 total allocation units on disk.
64335362 allocation units available on disk.

Internal Info:
00 53 06 00 55 9b 04 00 63 79 08 00 00 00 00 00 .S..U...cy......
0a 08 00 00 69 00 00 00 00 00 00 00 00 00 00 00 ....i...........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

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


After reboot and again in windows, HDsentinel now shows 63% and says that there are 25 bad sectors. Am I missing something?
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Re: Question about hd health

Postby hdsentinel » 2020.03.22. 09:32

Yes, you missed something:

https://www.hdsentinel.com/faq.php#tests

https://www.hdsentinel.com/faq.php#health

When Hard Disk Sentinel displayed the errors first, it is recommended to perform the PROPER way to diagnose, test, reveal and fix issues.
If you read those pages, chkdsk never mentioned, as chkdsk *never* recommended in such cases: chkdsk (even if sounds surprising) never fixes problems with the hard disk, but attempts to fix problems with the logical drive / partition only. This is wrong approach, described with details on https://www.hdsentinel.com/hard_disk_case_weak_sectors.php

(Data recovery companies never recommend chkdsk on a problematic hard disk).

So when you see errors in Hard Disk Sentinel, then you'd need to perform tests by the proper ways, exactly to reveal possible issues, fix them (if possible) and attempt to stabilize the hard disk status. If this happened, so the physical hard disk status is fixed, stabilized, then you may use chkdsk just to verify the logical drive/partition status (if required).
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