windows boot configuration data file does not contain a valid OS entry


  1. loci
    Posts : 2
    Windows 7 Home Premium 32bit
       New #1

    windows boot configuration data file does not contain a valid OS entry


    windows boot configuration data file does not contain a valid OS entry (0xc0000098)

    Trying to fix my aunts laptop (Toshiba satellite/windows 7). Tried a recovery disc, which was painfully slow but no joy.


    Here is screenshot of boot:
    http://oi46.tinypic.com/2ut3kmb.jpg

    Partition check with 'partition wizard':
    http://oi46.tinypic.com/2z6tv92.jpg

    I was able to explore the "system reserved" partition, which shows boot folder etc:
    http://oi50.tinypic.com/34fdw79.jpg

    When I explored the larger partition it only showed "(Disk 1 Partition 2)
    http://oi45.tinypic.com/11iif5g.jpg

    I did the diskpart thing in command prompt:
    vol 0= E dvd rom
    vol 1= C 100mb partition (active)
    vol 2= D 232gb partition

    Any advice on what to do to try fix this missing OS.
    Thank you.
      My Computer
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  3. gregrocker
    Posts : 50,642
       New #2

    If you ran Factory Recovery it apparently failed. Had you asked first we could have helped you work through the steps for Troubleshooting Windows 7 Failure to Boot. Now there is likely nothing to repair, although you can try Startup Repair after marking Win7 or its boot partition Active.

    What I would do now is get and maintain a superior Clean Reinstall - Factory OEM Windows 7 . Everything needed is in the blue link.

    If it fails to install, reset BIOS to defaults: Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS

    While in BIOS setup set SATA controller to AHCI to try install. If that fails try IDE mode.

    If install still fails try wiping the HD from the installer's Command Line using Diskpart Clean Command

    Report back results as there will be more steps if necessary.
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  4. loci
    Posts : 2
    Windows 7 Home Premium 32bit
    Thread Starter
       New #3

    Hi, no I never did "Factory Recovery". I just booted a windows 7 recovery disc and chose "startup repair".
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  6. gregrocker
    Posts : 50,642
       New #4

    That would be the Win7 Repair CD which is different than Recovery disk which restores PC to factory condition.

    Then you may still be able to repair by working through the Troubleshooting steps posted.

    Make sure the Win7 HD is set to first HD to boot in BIOS setup.

    Report back on results of steps completed as there may be different ones required.
      My Computer
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