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Defrag Some of the files could not be defragmented

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  • louwoo Aug 03, 2008

    Hey Jeff,

    I defrag on a monthly basis with Windows defrag. The last two times, I got the message that some files coukd not be defragmented. The chart still had some red lines. I have 85% free space on the hard drive.



  • louwoo Aug 05, 2008

    Hey Jeff,

    On the 1st of the month I always do scan disk and check the blocks labeled: Automatically fix file system errors. Scan for and attempt recovery of bad sectors. There has never been any problems found. This has to be done on restart of computer.

    Then I run the Windows defrag.

    When I followed your instructions to the point of close DOS, I got this message:

    Windows cannot end this program. It may need more time to complete an operation.( I gave it 15" with no changes.)

    To return to Windows and check the status of the program, click cancel. (I click cancel and didnot see anything)

    If you choose to end the program immediately, you will lose any unsaved data. To end program now, click End Now.

    I have run the defrag in safe mode with the same message as before.





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Hi louwoo- Don't rate this til I've answered your question please. When you say couldn't be defragmented, did it give you an error or do you mean the chart still had some red left over after defrag? Did you use Windows defrag or Third Party software? Thanks.


Posted on Aug 03, 2008

  • Jeffrey Pemberton
    Jeffrey Pemberton Aug 05, 2008

    Hey louwoo - As far as the red lines go, you can have 0% fragmentation and still have some thin red lines. As far as some files could not be defragmented, there are several reasons you may get this message. Part of your MFT (Master File Table) might have some fragments. You can check this when you run analyze in disk defragmenter and click on view report and scroll down to the MFT section. Another reason is some people have files that are larger than 64MB that sometimes can't be defragmented right. Still another is you might have some software running that it won't defrag while in use. You might have added software in the last two months that might be running, i.e. a new anti-virus or the like. It all depends. Without getting in too deep, here's what I'd do:

    1) click on start>run>type "cmd" without the quotes in the box and then click on ok.

    2)type cd cd C: \

    You should now see C:>

    3)type chkdsk /f (space between the k and the /)

    You'll probably get a message that says it cannot be run now because the volume is locked or mounted, do you want to run chkdsk the next time you start your computer(Y/N)?

    4)Just type Y and enter. Then close the DOS box. Restart your computer and chkdsk will run and fix any errors it finds in directories, cross linked files, etc. (Won't take long)

    5) Once chkdsk has finished, you may want to just notice if it found errors and let me know. After it finishes booting completely, reboot in safe mode. You probably know how to do this but just in case:

    1)Reboot and as soon as you see something on your screen start tapping the F8 key. This will take you to a boot options menu screen.

    2) Choose SAFE MODE. This will start your pc with a minimum amount of drivers and programs.

    3)Once booted in safe mode, run disk defragmenter and see the results. Let me know what happens and we'll take it from there. Thanks.




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