Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: BSoD related to iaStor.sys

15 Apr 2011   #1
Dapizz

Windows 7 Home Premium 64bit
 
 
BSoD related to iaStor.sys

Hi,

I have a HP G56 which started BSoDing a week ago. The BlueScreen report flashes up for a few seconds but then the crash dump it makes is done so it reboots before you get to read most of the message. I can successfully boot up the PC in all three versions of Safe Mode and not get a BSoD, however. I have tried RegCure but now I realise that was a bit of a mistake. Apparently it's made for earlier versions of Windows. From what I gather from the BSoD, iaStor.sys seems to be the problem. This file seems to also have a bit of history on forums and help site around the web. Does anyone have any idea about what I can do? I have done system restore to about a week before any trouble and nothing happens. I'm thinking about backing up to my friends external hard-drive and re-installing... Any better ideas.

Thanks.


My System SpecsSystem Spec
.
16 Apr 2011   #2
usasma
Microsoft MVP

 
 

iaStor.sys belongs to the storage drivers for the controller on the motherboard.
BUT, it also rears it's ugly head in a BSOD if you are infected with some variants of the TDSS rootkit.
There are other, less likely causes, but these are the 2 most common.

Try this free tool to see if you are infected with TDSS: http://support.kaspersky.com/viruses...?qid=208280684 (it'll run in Safe Mode). If you are, and it still doesn't boot, you're in for some gyrations to get it to work (running multiple virus removal tools and multiple commands with bootrec and Startup Repair - that work in most (but not all) cases.

See if you can update the Storage drivers in Safe Mode (some installers will allow this) - and try the storage drivers from http://downloadcenter.intel.com to make sure you get the most current version.

We can troubleshoot this further, but if it's the rootkit you're best off with wiping the hard drive and reinstalling Windows.

To do this it's essential that you:
- backup your stuff (and scan it with an antivirus)
- find the restore disks for your system (not the restore partition on the hard drive)
- wipe the drive (to include all freespace) with either DBAN or KillDisk (both are free with a Google search)
- install Windows.
My System SpecsSystem Spec
16 Apr 2011   #3
Dapizz

Windows 7 Home Premium 64bit
 
 

Thanks for replying. Firstly, I don't have a disk to reinstall, only a Recovery Partition with Windows reinstaller on it. If I go into Control Panel, I could easily reinstall with a few clicks and some waiting, I'm just waiting to borrow a hard-drive from my friend. Secondly, I've scanned with AVG, or with as much of it as possible in Safe Mode, and that got nothing malicious. I was thinking about downloading Microsoft Security Essentials on the laptop I'm posting from and then transferring it with a pendrive like I did with RegCure, which claimed would solve the problem. And thirdly, as far as I know, I have all the latest drivers from Intel, but I'll take a look at the links you posted. Thanks again.
My System SpecsSystem Spec
.

16 Apr 2011   #4
Dapizz

Windows 7 Home Premium 64bit
 
 

BTW, would the storage driver be a Serial ATA Controller?
My System SpecsSystem Spec
16 Apr 2011   #5
Dapizz

Windows 7 Home Premium 64bit
 
 

YAY!!! The Kaspersky thing worked a treat, fixed the problem, and up and running more than ever. Back posting from my proper laptop! Amazing. Thanks so much! And I rarely triple exclamation mark.
My System SpecsSystem Spec
16 Apr 2011   #6
usasma
Microsoft MVP

 
 

Glad to hear it! Run several other scans (free online scans here: Free Online AntiMalware Scanners (read the details at the link)) to make sure that you've removed everything nasty.

The TDSS rootkit is a very nasty little bugger - so you'll want to make sure that your system is thoroughly scanned for any remnants (it even hides in the free space and MBR of your drive).
My System SpecsSystem Spec
17 Apr 2011   #7
Dapizz

Windows 7 Home Premium 64bit
 
 

Ok.. I'll do that. I also switched AV from AVG to Microsoft Security Essential but I think it's slowing me down...
My System SpecsSystem Spec
Reply

 BSoD related to iaStor.sys




Thread Tools




Similar help and support threads
Thread Forum
iaStor.sys BSOD
I've been getting repeated BSODs related to iaStor recently. So far I have downloaded Malwarebytes, SuperAntiSpyWare, and TDSSKiller and none of them have turned up any malware, so a rootkit can presumably be ruled out. I did the scans both in and out of safe mode. I've also reinstalled the driver...
BSOD Help and Support
Random BSOD, iastor.sys related - error code d1
Hi all, A couple of days ago my laptop started randomly BSODing every so often, sometimes as close as 5 minutes apart, but sometimes it stays on for a few hours. This happens while playing games, browsing websites or even when just leaving the computer alone, I really can't see a pattern. ...
BSOD Help and Support
iastor.sys related BSOD
This started yesterday when I began having issues with Bitdefender. Attached is the memory.dmp and the SF diagnostic file. BSOD has occured during a recovery operation as well as randomly. I have checked my SATA driver and it is up to date. I did go to the intel site and several other...
BSOD Help and Support
BSOD Apparent related to IPOD Touch and/or related services
My PC has recently started erratic BSOD crashes after a year of bliss. I installed UBUNTU as second boot option and it seems to work normally. Would rather not just give up on Windows 7 - particularly as this is x64 version and UBUNTU is only x86 version; I also have some windows-only software...
BSOD Help and Support
BSOD iastor.sys
Hello! I was surfing youtube one day and my computer suddenly restarded. On startup I got a bluescreen telling me DRIVER_IRQL_NOT_LESS_OF_EQUAL, iastor.sys etc. I can still not start my computer normally. I have now successfully started up in safe mode with network. However this does not work...
BSOD Help and Support


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 14:38.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App