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the disk structure is corrupt and unreadable

Hi.

Having an odd issue with my Windows 7 64 bit laptop and a Seagate 2tb external drive. All seemed perfectly fine until I recently did some pc speeding up, running ccleaner, Malwarebytes, defragging, changing some power settings. Nothing really all that crazy.

However, after all was said and done, I attached my Seagate external and a window pops up telling me I will have to format the drive before I can use it. I cancel that, double click on the drive, which is labeled G, and another popup says, "G drive is not accessible. The disk is structure is corrupt and unreadable."

I think it's a bit coincidental that after all this tweaking, my previously unattached external takes a dive. I wonder if this issue has more to do with the tweaking and maybe defragging of my C drive? Anyone got some ideas of how I can get the external back online? I don't want to do anything that might damage any of the files, as I really don't think there is anything wrong with the drive, truthfully. I may be wrong, but I'd love some feedback and suggested remedies! I have 3 jobs due and all the work is saved on that drive!

Thanks in advance.
12 answers Last reply Best Answer
More about disk structure corrupt unreadable
  1. try it on a different pc
  2. This is the only machine I have here for now. Will try to find another to check it on tomorrow. If it works on another PC, then any ideas on how to get my machine to see it?


    Cons29 said:
    try it on a different pc
  3. Still haven't had the chance to test it on a different computer, but chkdsk came up with these results. No idea what it means though.

    The type of the file system is NTFS. Volume label is FreeAgent Goflex Drive. WARNING! F parameter not specified. Running CHKDSK in read-only mode. Corrupt master file table. Windows will attempt to recover master file table from disk. Windows cannot recover master file table. CHKDSK aborted.
  4. Rerun CHKDSK with the /f /v /r flags (/f=fix, /v=verbose, /r=bad sector scan). I'm guessing that you simply disconnected the external drive without going through the proper removal procedure, and the MFT wasn't properly updated. With the /r switch set you can expect the scan to take several hours.
  5. I suspect that's what happened as well. Sometimes it doesn't show up in that little remove hardware list. Who knows why...this machine has always been a little buggy. Was on the phone with Seagate and luckily the drive is under warranty, they say they'll send me a new (refurb) drive, but they want 100 bucks for the recovery software. I'm a little uncomfortable with doing that with a drive that may be perfectly fine.

    Can you give me the exact string command to get this process started that you're suggesting? And do you know if running any of it will compromise any of the files on the drive in case I have to go so far as to recover it with their over-priced software?

    Thanks for your help!


    ex_bubblehead said:
    Rerun CHKDSK with the /f /v /r flags (/f=fix, /v=verbose, /r=bad sector scan). I'm guessing that you simply disconnected the external drive without going through the proper removal procedure, and the MFT wasn't properly updated. With the /r switch set you can expect the scan to take several hours.
  6. them8rix said:
    ....Can you give me the exact string command to get this process started that you're suggesting?....

    CHKDSK <drive letter>: /f /v /r /x   <==Note the colon ":" and spaces.  
    /x will force a dismount of the drive if required


    them8rix said:
    ....And do you know if running any of it will compromise any of the files on the drive in case I have to go so far as to recover it with their over-priced software?

    In all the years I've been doing this I've never lost data to CHKDSK, unless the drive was already dead.
  7. Thank you for your patience and assistance. So just to be clear I give the entire string command exactly as you've written, not each
    "/" separately, like for example:
    CHKDSK G: /f (run it...then)
    CHKDSK G: /v etc...

    Just have it do all of them all at once?

    And, also, just to clarify...and because I might die if I lose this data, you say you've never lost any data with this process unless the disk was already dead. So, let's pretend it's dead...will this process then disturb the data (which may, for all intents and purposes also be dead...but my computer knowledge is limited so not sure if it's one in the same)?

    It ain't easy being green.
  8. Best answer
    The commandline is exactly as I gave it, all on one line.

    If the drive is no longer functional then CHKDSK will fail (eventually) and the data will only be recoverable by a professional recovery service. In this case the drive appears to be just fine and your data will not be hurt by the process.
  9. Great! Thanks!!

    ex_bubblehead said:
    The commandline is exactly as I gave it, all on one line.

    If the drive is no longer functional then CHKDSK will fail (eventually) and the data will only be recoverable by a professional recovery service. In this case the drive appears to be just fine and your data will not be hurt by the process.
  10. Took a second, then pretty much said what it said before:

    The type of the file system is NTFS. Volume label is FreeAgent Goflex Drive. Corrupt master file table. Windows will attempt to recover master file table from disk. Windows cannot recover master file table. CHKDSK aborted.

    :/

    I guess I've run out of options and must hope that I can recover something off of this drive? Do you know if I have to use their $100 software, or if there is something more reasonable out there that would work?
  11. At this point it looks like the filesystem is damaged beyond your ability to fix it. I recommend a professional recovery service. Yes, it will cost, but they have the proper tools and techniques to recover data in these situations. The more you yourself mess with it the less likely anything can be recovered, even by professionals.
  12. Gotcha. Thanks for taking the time!
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