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Windows 7: windows boot configuration data file does not contain a valid OS entry


31 Aug 2012   #1

Windows 7 Home Premium 32bit
 
 
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 System SpecsSystem Spec
.

31 Aug 2012   #2
Microsoft MVP

 

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 Windows 7 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.
My System SpecsSystem Spec
31 Aug 2012   #3

Windows 7 Home Premium 32bit
 
 

Hi, no I never did "Factory Recovery". I just booted a windows 7 recovery disc and chose "startup repair".
My System SpecsSystem Spec
.


31 Aug 2012   #4
Microsoft MVP

 

That would be the Windows 7 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 Windows 7 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 System SpecsSystem Spec
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 windows boot configuration data file does not contain a valid OS entry




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