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  1. #1
    5 Star Lounger
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    DEFRAG ERROR MSG

    Hi, when doing a defrag in safe mode, I get a ILLEGAL OPERATION message and it shuts down DEFRAG. I am running WIN 98 1st edition. Any suggestions???

  2. #2
    Plutonium Lounger Leif's Avatar
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    Re: DEFRAG ERROR MSG

    Restart in DOS and run a full Scandisk from the Dos prompt, including a surface scan.

    See 199557: Command-Line Parameters for the Scandisk Tool

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    Re: DEFRAG ERROR MSG

    Hi Leif, I did that and am in the process of defraging. So far so good. What does the SCANDISK do that "solves" the illegal operation" issue with DEFRAG? I had run a thorough SCANDISK from Windows twice before (including surface scan). I had also run System File Check and found no problems there.

    Thanks for your help.

  4. #4
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    Re: DEFRAG ERROR MSG

    Hello again Leif,

    Did the Scandisk and then ran Defrag - completed without a hiccup. Thanks for the help.

  5. #5
    Plutonium Lounger Leif's Avatar
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    Re: DEFRAG ERROR MSG

    It was probably a slight blip on your hard disk - maybe a deleted file that wasn't quite deleted or a small section of the hard disk had gone 'bad'.

    When you run the defragger, the system collates all the fragments into single lumps. If, however, it comes across a fragment it can't relate to any other, or a section of HD it can't write to, it understandably gives up the ghost.
    Running Scandisk checks the identity of all files, and fragments of files, and optionally offers to save lost and found data - usually a pretty pointless excercise unless you have the ability to make sense of this saved information.
    The surface scan checks the read/write credibility of the HD, marking as 'unusable' any bad areas.
    Running Scandisk from DOS allows all files to be checked, including those that would normally be locked when running your OS.

    In all likelihood it was a damaged file so old you never knew it existed. But I would recommend running Scandisk on a regular basis - once a month at the very least. It can save a lot of heartache.

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