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Windows 7: How to solve BSOD problem in iastor.sys


04 Apr 2011   #1

Windows 7
 
 
How to solve BSOD problem in iastor.sys

I had started having this problem a week ago. I think this was one of the hardest virus. But I really didn't want to mix antivirus software because it will eventually mess OS up and make me format my HD. So I started my journey to manually fix this problem. After a couple of days, I could find a solution that worked.

Problem Description.

1. 5 or 10 seconds after login to Windows 7 64-bit, the system goes to BSOD stating a problem with iastor.sys

2. Since it happens after login, after reboot, you don't get repair option at the startup, but only safe mode options, even safe mode with command prompt, that will eventually crash at some point.

3. Even after getting recovery CD or repair option enabled, and fixing the problem with "bootrec /fixmbr" and "bootrec /fixboot", BSOD will happen again at the exactly same time around 11:30am in the next day.

A solution: This is a solution I found, which means that you can accomplish this in many other ways.

1. Get to repair command prompt. I could do this by creating another error - by setting HDD mode to compatibility in BIOS. This will create startup error and thus system repair option will appear in startup after reboot.

2. When you get repair mode, skip repairing and try to get to the dialog showing advanced options. This can take 10-20 minutes for some reason I don't know.

3. In advanced options, go to command prompt and do following before restart

bootrec /RebuildBcd
bootrec /FixMbr
bootrec /FixBoot

4. Change back HDD mode to AHCI in BIOS and save/reboot

5. Delete iastor.sys in windows/system32/iastor.sys and uninstall intel storage management

After rebooting, the BSOD should never happen again.

Hope this helps

My System SpecsSystem Spec
.

19 Sep 2011   #2

Vista Home 32bit
 
 

This isn't working for me. When i try to get to dialog showing advanced options, it simply never shows up! Im really sick of this iastor.sys problem
My System SpecsSystem Spec
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 How to solve BSOD problem in iastor.sys




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