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BSOD by iaStor.sys, Command Prompt is only option


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#1 olo3000

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Posted 09 January 2011 - 09:00 PM

Hi,

1st post, I hope it's not too early to ask for help.

Here's my issue: I have a laptop running Windows 7 Home Premium 64-bit. There is no optical drive. A couple of days ago I was using a downloaded keygen program for Adobe Acrobat. As soon as I unzipped it, AVG gave me a warning. I stopped using that app and got rid of it. I then found another keygen and as soon as I clicked on the .exe I got the BSOD which indicated a problem with iaStor.sys. I know that was stupid but I needed to use Acrobat and I had successfully downloaded keygens for it in the past. From then on I got BSOD about 10 seconds after logging in to Windows, safe modes included.

I researched the issue on a clean PC and found lots of info here. I made a bootable USB with the Windows 7 Recovery CD, which allows me to do a System Startup Repair and to enter Command Prompt. System Repair finds no errors. From others' experiences at the link above, I did the following at Command Prompt:

Bootrec.exe /FixMbr
Bootrec.exe /FixBoot

That must have been a mistake because now I can't even get to the windows login screen. I get BSOD when the Windows colored dots are spiraling around the black screen. Since then, I've been trying to execute TDSSkiller.exe from Command Prompt because that solved the issue for many others at the link above. When I type "start tdsskiller.exe" from Command Prompt, I get message that "The subsystem needed to support the image type is not present." I have no idea what else to try.

If anybody can help, please, please do. I really need to get this computer and my files back. Thank you.

Edited by hamluis, 15 January 2011 - 12:28 PM.
Moved from Win 7 to Am I Infected.


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#2 Broni

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Posted 09 January 2011 - 09:57 PM

With the information you have provided I believe you will need help from the malware removal team. I would like you to start a new thread and post a DDS log HERE and include a link to this thread. Please make sure that you read the information about getting started before you start your thread.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient. Help is on the way!

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