Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: bad sector repair

27 Jul 2015   #1
louis14

windows 7 Home Premium 64 bit
 
 
bad sector repair

How do I see whether chkdsk has repaired a bad sector?
Before running chkdsk, crystaldiskinfo (using smart) showed current pending count: (raw value)2
After running chkdsk, crystaldiskinfo showed still current pending count: (raw value) 2


My System SpecsSystem Spec
.
27 Jul 2015   #2
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

Bad sectors aren't repaired. They are retired and marked to never be used. Spare previously unused sectors are brought in to replace the retired bad sectors.

Is that raw value from Crystal hexadecimal?

Go to Crystal function menu/advanced feature/raw values and make sure that is set to 10 [Dec]. Does it then still show as 2?

You might want to run Western Digital's disk tools instead of checkdisk.
My System SpecsSystem Spec
27 Jul 2015   #3
LMiller7

Windows 7 Pro 64 bit
 
 

When the drive detects a bad sector during a write operation it is able to immediately replace it with a spare, effectively "fixing" the problem. But if the error occurs during a read operation the problem is more difficult to solve. As the correct contents of the sector is unknown (and at present unknowable) the sector cannot be immediately replaced. The sector is added to the "Current pending sector count" list. To be replaced one of the following must occur:

1. The sector is later successfully read and it's data obtained.
2. The sector is written to with known data.

The problem is that there is no assurance that either event will ever occur. There really isn't anything you can do about this. Writing to the sector would cause it's replacement but that would result in the loss of it's contents, which may be important.

A small number of "reallocated sector count" or "pending sector count" doesn't necessarily mean the drive is dying but you should continue to monitor the situation. If either strts to rise this could indicate an internal problem and the drivre would need to be replaced.

But above all else be sure you have a backup of all your data. Any drive, new or old, can die at any time, often without warning or apparent cause.
My System SpecsSystem Spec
.

27 Jul 2015   #4
louis14

windows 7 Home Premium 64 bit
 
 

Chkdsk log showed 4kB in bad sector.
I suppose this is 4kbyte data in bad sector and not 4000 bad sectors.correc?
My System SpecsSystem Spec
27 Jul 2015   #5
LMiller7

Windows 7 Pro 64 bit
 
 

The log refers to 4KB data in bad sectors. With the standard cluster size of 4K or 4096 bytes(which is almost always used) that would mean 1 bad cluster. If there are 2 bad sectors they must be in the same cluster. Chkdsk, like just about everything in Windows, works only with clusters, not sectors.
My System SpecsSystem Spec
27 Jul 2015   #6
louis14

windows 7 Home Premium 64 bit
 
 

I have runned the western digital lifeguad diagnostic tool and it's smart data says i have no pending sector count:this is in contrast with crystaldiskinfo.western digital says also i have a good health status.
The extende test of wrestern digital says i have bad sectors
My System SpecsSystem Spec
27 Jul 2015   #7
louis14

windows 7 Home Premium 64 bit
 
 

I just want ro add that crystaldiskinfo healt state says caution
My System SpecsSystem Spec
27 Jul 2015   #8
GokAy

Windows 7 Ultimate x64 SP1
 
 

You would have a chance to repair bad sectors if it is a Seagate or Maxtor drive (if I remember right). SeaTools for DOS and Windows - How to Use - last 3 screenshots.
My System SpecsSystem Spec
28 Jul 2015   #9
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

Quote   Quote: Originally Posted by louis14 View Post
I have runned the western digital lifeguad diagnostic tool and it's smart data says i have no pending sector count:this is in contrast with crystaldiskinfo.western digital says also i have a good health status.
The extende test of wrestern digital says i have bad sectors
If I understand correctly, both Crystal Disk Info and Western Digital say your hard drive is having problems. No matter which one you want to believe, I would make sure my data is backed up if you can and be making plans for a replacement. The extended tests are usually the most accurate.
My System SpecsSystem Spec
28 Jul 2015   #10
Boozad

W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM
 
 

As essenbe has said, backup your stuff and replace the drive. If it's starting to go bad it's only going to get worse.
My System SpecsSystem Spec
Reply

 bad sector repair




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
create or repair boot sector on an already installed windows disk
Hello, This is my problem - I added a SSD to my computer. - Windows 7 Home was installed at my C-drive (harddisk) - I succesfully installed Windows Home at my new A-drive (SSD) - When I startup I can choose between two Windows 7 installation The first is the new installation, the second...
Hardware & Devices
Backup cloning from 512 byte/sector HDD to 4KB/sector HDD
I'm trying to educate myself on cloning i.e. bootable sector-by-sector replication, not just creating an image file of the used disk space. So far, I've bought a high performance HDD of the wrong size, trying to make sure that I replace it with an HDD with which my first cloning attempt will go...
Backup and Restore
SSD sector repair, Windows 7 will no longer boot.
I was working on my computer when windows locked up and I was forced into a hard shut down, when I restarted the computer one of my hard drives showed up as invalid and my computer would not recognize it. When I tried to repair the sector to make it valid the it seemed to work, now my computer will...
Hardware & Devices
How to correct boot sector without repair disk
Here is my predicament: Have a netbook with Windows 7 Starter. It dualboots with Linux. My plan is to remove the Linux partition to make space on the hard disk. Obviously then the boot information, which is a GRUB, should be corrected. How can you edit this ahead of time, to allow a boot with a...
Performance & Maintenance
Random fill tool to repair bad sector
Hello all, I have bad sector on the hard disk as a snip, Are there any tool do random fill just at bad sector cluster, please ? If there is no such tool , could you recommend the utility for normal random fill ?
Hardware & Devices


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 19:33.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App