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Windows 7: Permanent BSOD Windows 7 Ultimate

14 Dec 2010   #1
mikas300

Windows 7 Ultimate 64 bit
 
 
Permanent BSOD Windows 7 Ultimate

I will try to make the long story short :

system :
Dell xps 1645
HDD: Seagate ST9500420ASG SATA
PGP full disk encryption - including the boot sector

I installed Windows 7 Manager Utility - I accidentally disabled AHCI feature from windows. => permanent BSOD STOP 0x0000007B

I tried to set the hdd in Bios from AHCI to ATA, but I got the same BSOD
I tried to boot in safe mode - same BSOD

I think the problem may be solved by reversing the settings in
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\IastorV
back to original value for AHCI - 1


I tried to boot using system recovery - > system recovery does not recognize an operating system because it does not have the SATA drivers. I looked on Seagate page for the drivers, on Dell page - and everywhere I could for the drivers - no luck.
Can anyone tell me where to download the Standard SATA drivers ( sys - inf) ?

I tried to follow this : Error message when you start a Windows 7 or Windows Vista-based computer after you change the SATA mode of the boot drive: "STOP 0x0000007B INACCESSABLE_BOOT_DEVICE". I can not use the utility in start-up mode because of the HDD encryption. I can not modify manually the registry in system recovery because I do not have access to the HDD due to incorrect AHCI settings.


Due to the fact that I am using full disk encryption, I can not use a recovery utility such as active@disk or Windows 7 DVD because the information is unreadable. I have extremely valuable information on the HDD - I can no afford to lose it.

I think that a link to a proper SATA driver would solve the problem.


Thanks for reading and I hope you can help me.


My System SpecsSystem Spec
.
14 Dec 2010   #2
Johnathan Lyman

Windows 7 Ultimate 64-bit
 
 

Before I start: /facepalm

You should back up your data, ALWAYS, regardless if it's encrypted or not. Just because it's encrypted doesn't make it any safer from hardware failures. I'm probably one of the few people who despise HDD encryption when the ability to really screw it up is very high so I'll try to keep a level head

Ok, now that I have that out of the way.

http://ftp.us.dell.com/SATA/R250679.exe

Try that. That's the only thing I can find for the XPS 1645 with the Seagate 500GB HDD.
My System SpecsSystem Spec
14 Dec 2010   #3
CarlTR6

Windows 7 Ultimate 32 bit
 
 

Hi, Milkas; and welcome to the forum. Please read this thread, follow the instructions and post back. We will be glad to help you.

http://www.sevenforums.com/crashes-d...tructions.html
My System SpecsSystem Spec
.

14 Dec 2010   #4
mikas300

Windows 7 Ultimate 64 bit
 
 

@ carl - I am sorry, the only thing I may add - due to the problem I am experiencing is the fact that i am running the 64 bit version of Windows 7 Ultimate - all other info it`s off limits because I can not access the OS trough safe mode, system restore ... etc.

@jelyman - I got a similar file from DELL - I need the disk.sys file of a standard SATA windows 7 driver - i believe any SATA HDD will do, Seagate will be even better- to load it when System Repair asks for it. Without this file, system repair fails to recognize the installed OS => I can not set the values back to 1.
My System SpecsSystem Spec
Reply

 Permanent BSOD Windows 7 Ultimate




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