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  1. #1
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    Windows 7 Hard Drive Defragmentation Tool

    There have been indications of some bad sectors on my HD. If I run the Defragmentation Tool, will it identify those bad sectors to keep them from being accessed in the future?

    I had Norton on earlier version of Windows and it would do this.

    Finally if the Defragmentation Tool does do this is there a way to see how many bad sectors it found?

  2. #2
    Gold Lounger Roderunner's Avatar
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    Hi WSG, My favourite defrag tool is Auslogics Defrag. Run it or the tool you choose, after running check disk.
    O wad some Power the giftie gie us, to see oursels as ithers see us!

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  4. #3
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    You should run chkdsk /R. It will locate any bad sectors and recover any readable information from them. It will report what it finds.

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  6. #4
    Gold Lounger Roderunner's Avatar
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    Quote Originally Posted by ruirib View Post
    You should run chkdsk /R. It will locate any bad sectors and recover any readable information from them. It will report what it finds.
    Hi Rui, is your method of doing check disk different from mine ?
    O wad some Power the giftie gie us, to see oursels as ithers see us!

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    Not sure what you mean?

  8. #6
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    Quote Originally Posted by ruirib View Post
    You should run chkdsk /R. It will locate any bad sectors and recover any readable information from them. It will report what it finds.
    Will it "mark" the bad sectors so they won't be accessed again?

  9. #7
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    Yes, chkdsk /R does that. It will also try to recover any data it can from such bad sectors and copy it to good sectors.

    You should be aware that a disk starting to have bad sectors is never a good sign. I suggest, after running chkdsk /R, that you create a disk image or use another backup type to make sure your important info and docs are safe, and then get a new disk asap.
    Last edited by ruirib; 2011-11-13 at 11:48.

  10. #8
    Bronze Lounger DrWho's Avatar
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    Ditto! Bad sectors, even just a few, are a harbinger of a future disaster.
    Drives are so cheap any more, that it's just not economical to mess with a drive developing bad sectors.

    Newer, larger drives are also faster drives. And today the newest SATA III drives are selling for virtually
    the same price as the much slower SATA II drives.

    A SATA III drive will work on a SATA II motherboard, but of course, will only run at SATA II speed.
    Future mobo's will all come with SATA III ports on them, and probably USB III ports too.

    Time and technology, march on.

    Cheers Mates!
    The Doctor
    Experience is truly the best teacher.

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  11. #9
    Super Moderator BATcher's Avatar
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    Bad sectors are a possible indicator of a future disaster - don't forget that the disk manufacturer checks the entire disk for bad sectors before shipping, and assigns any bad sectors found to point to one of the spare sectors. That's one of the functions of the so-called Low Level Format. Disks need not necessarily be absolutely perfect, even when new. You need to worry when you start finding lots of new bad sectors on a continuing basis. It's a pity that the so-called SMART disk status is rarely made visible

    Disks used to be fairly cheap - but the Asian Floods has caused the price to double, and then some...
    BATcher

    Time prevents everything happening all at once...

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