Need a utility to mark the bad sectors of a drive so windows wont use them

shortylickens

No Lifer
Jul 15, 2003
80,287
17,082
136
Umm, as a student of electronics and technician at Hynix semiconductor I know darn well transistors can burn out quite easily, and thats what Solid State Drives are made of.

Something is very freakin wrong with my drive I guess.
 

lxskllr

No Lifer
Nov 30, 2004
60,284
10,713
126
I think that's the job of the ssd firmware. If that weren't the case, you couldn't count on anything being on the drive when you tried to access it.
 

mikeymikec

Lifer
May 19, 2011
21,136
16,340
136
Need a utility to mark the bad sectors of a drive so windows wont use them
chkdsk driveletter: /f /v /r

Furthermore, if I suspected an SSD was in bad shape, apart from doing a backup I would want to download whatever utilities the manufacturer has made for the drive in the hope of finding out more information about the problem and/or a solution from the manufacturer's software.
 
Last edited:

Cerb

Elite Member
Aug 26, 2000
17,484
33
86
Umm, as a student of electronics and technician at Hynix semiconductor I know darn well transistors can burn out quite easily, and thats what Solid State Drives are made of.

Something is very freakin wrong with my drive I guess.
Yup. It's not that they can't, but that the controller/firmware is designed to, as sectors start to go, to remap them, so you never see a bad block. For example, TR's endurance test w/ the 840 Evo got insane amounts of reallocated sectors towards the end, but did not lose a single byte of data.

Depending on SSD, a secure erase might do well enough, to keep using it.
 

shortylickens

No Lifer
Jul 15, 2003
80,287
17,082
136
OK, HD Tune did not find anything bad after two thorough passes.

Windows 7 did, surprisingly. And fixed it. Which is weird. I'm not used to that.

So drive is back in my game system, and works fine.
 

mikeymikec

Lifer
May 19, 2011
21,136
16,340
136
What were the results of the disk check?

Run eventvwr

Windows Logs > Application Log
look for an entry with a time corresponding to when the check completed, with the source 'wininit'.
 

xgsound

Golden Member
Jan 22, 2002
1,374
8
81
I'm new to SSDs. Here is the important things I found out.

SSDs and spindle disks have uniquely different utilities to accomplish the same tasks due to their limitations.

An SSD should never be defragged or repeatedly tested (including benchmarks) because each bit has a finite times it can be written to. Firmware replaces bad "blocks" on the fly. Trim and garbage collection handles the rest. Windows 7 and above are supposed to do this on their own. An SSD toolbox by the manufacturer can determine SSD disk health and should handle maintenance duties on older OSs.

The procedures that were prudent on spindle disks such as surface checks and defragging are counter productive on an SSD.

Jim
 

PliotronX

Diamond Member
Oct 17, 1999
8,883
107
106
chkdsk driveletter: /f /v /r

Furthermore, if I suspected an SSD was in bad shape, apart from doing a backup I would want to download whatever utilities the manufacturer has made for the drive in the hope of finding out more information about the problem and/or a solution from the manufacturer's software.
Chkdsk /r is the only way to do it for Windows. It will mark bad sectors in the logical structure but if the SMART status shows reallocated sectors I would look into R MA or perhaps over provisioning may help.
 

fandroid

Banned
Apr 28, 2014
10
0
0
RepartitionBadDrive is a tool which can create separate partitions of bad sectors . There aren't hidden but you can delete the drive letters from windows disk management so the partitions will disappear from your computer.