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Windows 7: Windows 7 (64 bit) bootmanager fails Status: 0xc0000225


17 Jan 2010   #1

 
 
Windows 7 (64 bit) bootmanager fails Status: 0xc0000225

When trying to boot I get the "Starting Windows" but the PC hangs then - no HDD activity, power off is the only course.
In Safe Mode the PC hangs after loading CLASSPNP.DYD

Attempted repair fails with Status: 0xc0000225 "boot selection failed because a required device is inaccessible"

I tried booting off the installation DVD but after loading Windows files it hangs at the "Starting Windows" stage as above.

I am able to boot off a Memtest CD (that shows no errors), also off a general diagnostic (Ultra-X QuickTech Pro) CD that shows no errors in any component.
However, trying to boot off a Knoppix CD hangs leaving a blank screen. I have restored the HDD from a backup image. The PC comprises mobo, HDD, optical, PSU only and all cables look good and tight.

Having read other posts with the same problem I looked through the BIOS but all seems good there; I did set to default values but problem persists.

My System SpecsSystem Spec
.

17 Jan 2010   #2

Windows 7 Ultimate x64, Mint 9
 
 

Eugeneg, welcome.

Can you find a way to see if there is a minidump to post?

Also, check all your cables, specifically to the hard drives.

~Lordbob
My System SpecsSystem Spec
17 Jan 2010   #3

 
 

Thanks for the reply Lordbob.
Alas, I wiped the disk and copied a backup over it so no previous dumps exist, and I don't think Windows is getting far enough to create one now.
All cables seem fine, and the diagnostics all worked when booting from a CD.
It's a head scratcher of a situation.
My System SpecsSystem Spec
.


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 Windows 7 (64 bit) bootmanager fails Status: 0xc0000225




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