1 Reply Latest reply on Oct 16, 2013 10:16 AM by Diego_Intel

    iastora.sys BSOD on HP ultrabook - can't even boot into windows




      I've had this HP ultrabook for just over a year now. When I first bought it I disabled intel rapid storage technology and did a fresh install of windows. After installing a clean copy I installed the intel rapid storage again and enabled acceleration.


      All has been running great until today.


      I think it might've had something to do with last night. I was using the laptop last night and the battery level got pretty low (like 10%), so I closed the lid and let it go to sleep.


      Woke up in the morning and opened the lid and it had turned off during the night like I suspected. This has happened before. I had left my charger at work.


      So I boot it up and start using it at work again, its working fine. I'm in the middle of doing coding in eclipse when I get a BSOD. Scared me, I haven't had one in a LONG time.


      At first I figured it was eclipse. I rebooted, updated eclipse to the most recent version, rebooted again, then continued coding in the updated version of eclipse.


      About 5 minutes in, I get the BSOD again. Now I'm pretty ******.


      I read the BSOD message and it says something about iastora.sys and DIFF_NOT_EQUAL or some crap like that.


      I google it and see that it is a common problem. One forum suggested updating rapid storage/drivers. So I did, and I rebooted....and got the same BSOD again.


      So do some more googling, and another forum says to just disable RST completely. He said first step was to disable RAID in the bios. I go into my bios (InsydeH20 rev 3.7) and I can't find anything mentioning raid. I find a "Intel Rapid Start Technology" which is currently enabled, so I disable that. I save settings and continue to booting windows.


      Once in windows, I go into the Rapid Storage Technology dashboard or w/e it is, and I disable acceleration. I see a little % counter that is counting up (it was rebuilding or something). Well, before it reached 100%...I got a BSOD AGAIN!


      I attempt to reboot and now I'm really freaking out. After pushing the power button, I get a windows error recovery screen, but this time its different. My only options are "Launch Startup Repair (recommended)" and "Start Windows Normally". I click "Start Windows Normally" and get the "Starting Windows" loading screen. Right after that I get a very quick (don't have time to read it) BSOD, and then it reboots and I get a RST "Reconstructing cache metadata screen", and then it goes back to the same Error Recovery screen.


      This time, I select "Launch Startup Repair". Only problem is, the OS / Partition Size / Location box is completely empty! I can't even do a restore/repair.


      So now I'm totally lost. I'm posting this from an old desktop. Fortunately my critical files were on dropbox, but I would still like to try and get booted into windows and recover a few things that werent in dropbox.


      Is there any way I can get back in? Even for a few minutes to grab some files?



      TL;DR got a BSOD for iastora.sys so I disabled acceleration and got a BSOD in the middle of disabling. Now I am stuck in a BSOD boot loop and don't know what to do

        • 1. Re: iastora.sys BSOD on HP ultrabook - can't even boot into windows

          Actually Intel(R) rapid start is not the same as Intel® Smart Response technology (which is the acceleration feature you have been using) and that is a feature of Intel(R) Rapid Storage Technology.

          To disable cache acceleration (Intel® Smart Response technology) you need to boot to the Intel(R) Rapid Storage Technology (a RAID option ROM, usually accessed using Control+I during boot up).


          The options to access the option ROM may be different depending on your computer manufacturer, and so the options inside the option ROM, so check with your Original Equipment Manufacturer if you need further details on this. Furthermore, RAID has to be enabled in BIOS so this option can be shown, then again, you should check with your system manufacturer to check the options in your system BIOS.


          So, what you can do would be to disable Intel® Smart Response technology and try to boot to the operating system, unfortunately, if critical boot files were in the cache during these restarts, the operating system may have been corrupted; but try disabling caching and then try to repair the operating system.