Bad sector on the HDD unrepairable?...or something else? - Page 2
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Thread: Bad sector on the HDD unrepairable?...or something else?

  1. #11
    Super Moderator: GMT Zone nihil's Avatar
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    Hi there O~

    Just as a side-thought, could it be possible to identify the bad sector(s) of the disk and create a partition around it, kind of like a physical quarantine? Or does it not quite work that way?
    Manufacturer's drive tools used to work that way, and create a new "recovery area". This would certainly not be detected by scandisk/checkdisk.

    Back in the days of having to physically tell your system to park the HDD heads this was generally OK, as the damage was frequently minor physical problems caused by moving the PC without parking the heads first.

    Today's HDDs are more sophisticated, so when you hit a problem like this it is generally fatal. Well, I certainly wouldn't recommend the continued use of such a drive

    Also, why would the upgrade tell me that there is a bad MBR and it can't continue, but the upgrade rollback returns me to working order? I thought the MBR was in a fixed area on the HDD. Doesn't make sense to me, unless I am misunderstanding the whole thing.
    The "upgrade" is effectively going to reinstall, so it checks the drive condition. Rollback is just an internal recovery so does not do this.

    [QUOTE][Oops, forgot to mention that Scandisk doesn't report any bad sectors, it just skips over 20% of the free space.
    That's a bad thing, isn't it?/QUOTE]

    Strange, but I have noticed that.............. I thought it was possibly my imagination but it does seem to finish a lot faster than it starts off?

    I really feel the need to do a bit of research on this, as you have raised a question to which I do not have a definitive answer.

    I suspect that when Scandisk/Checkdisk hits the area that still has the original manufacturer's "pattern" on it, it skips the testing. As a technician I would not find that acceptable in a "proper" diagnostic tool. However, I can see Microsoft's viewpoint; in that these are "user tools" to be employed when you have problems, or to avoid them. So, you are only interested in the part of the drive that you have been or are still using?

    The never used part represents: "joys still to be experienced"

    That is a complete guess by the way

    I do have a matching pair of "virgin" drives I can experiment with. I am thinking of:

    1. Load OS onto a drive as it comes out of the box.
    2. Nuke the second drive with DBAN or Eraser and load the same OS
    3. Run Checkdisk, and see if there is a difference.

    If I overwrite with random data, it should look different from the manufacturer's "pattern", I would have thought?
    If you cannot do someone any good: don't do them any harm....
    As long as you did this to one of these, the least of my little ones............you did it unto Me.
    What profiteth a man if he gains the entire World at the expense of his immortal soul?

  2. #12
    Senior Member Ouroboros's Avatar
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    Quick update.

    I've used 3 different 'freeware' tools to scan my current HDD. None of them have detected any problems with the physical condition of the disk. No bad sectors reported either.

    The only thing that I can think of is a partition problem. I used to dual boot this Win Vista with Kubuntu Linux.

    I ran FDisk upon startup and saw that there was an extended DOS partition in the report, but when I tried to purge it, FDisk didn't recognize it.

    It's gotta be the partition thing. Nothing else besides the 'upgrade' and the Windows defrag are returning errors. Are there any FREE tools that could help me here, a la 'Partition Magic'.

    I just wiped my backup clean, and am ready to ghost my current HDD to it, but i'd rather not, considering the time it would take to do so (and the time to return it to my main HDD after wiping it)

    Specs- Main HDD is a 250GB 7200RPM Western Digital, Backup is a 60GB Seagate 60GB 5xxxRPM

    Any thoughts?

    O
    "entia non sunt multiplicanda praeter necessitatem"

    "entities should not be multiplied beyond necessity."

    -Occam's Razor


  3. #13
    Senior Member Ouroboros's Avatar
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    The Auslogics defrag that Nihil suggested would work like a charm for anyone, BTW.

    O
    "entia non sunt multiplicanda praeter necessitatem"

    "entities should not be multiplied beyond necessity."

    -Occam's Razor


  4. #14
    Super Moderator: GMT Zone nihil's Avatar
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    Hi Ouroboros,

    Try Ranish Partition Manager:

    http://www.ranish.com/

    If you cannot do someone any good: don't do them any harm....
    As long as you did this to one of these, the least of my little ones............you did it unto Me.
    What profiteth a man if he gains the entire World at the expense of his immortal soul?

  5. #15
    Senior Member Ouroboros's Avatar
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    Thanks, nihil, I will give that a shot.
    "entia non sunt multiplicanda praeter necessitatem"

    "entities should not be multiplied beyond necessity."

    -Occam's Razor


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