BSOD On Startup error 0x0000001a

**axe0** · 02 Oct 2015

Please visit Windows Update and install every update available, it may take a couple of times to get them all.

The iaStor.sys doesn't look updated.
Please check here for updates

Code:

1: kd> lmvm iastor
start    end        module name
85602000 856dc000   iaStor   T (no symbols)           
    Loaded symbol image file: iaStor.sys
    Image path: \SystemRoot\system32\DRIVERS\iaStor.sys
    Image name: iaStor.sys
    Timestamp:        Fri Jun 05 03:42:33 2009 (4A287809)
    CheckSum:         0005798D
    ImageSize:        000DA000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

This looks like a problem with the CPU

Code:

MODULE_NAME: invalid_control_transfer

IMAGE_NAME:  invalid_control_transfer


DEBUG_FLR_IMAGE_TIMESTAMP:  0


IMAGE_VERSION:  


BUCKET_ID:  CPU_CALL_ERROR


FAILURE_BUCKET_ID:  CPU_CALL_ERROR


ANALYSIS_SOURCE:  KM


FAILURE_ID_HASH_STRING:  km:cpu_call_error


FAILURE_ID_HASH:  {03d3857e-8d42-432f-c638-a5118c31ce68}

Diagnostic Test

CPU TEST

Run Prime95 to stress test your CPU. Prime95 - Stress Test Your CPU - Windows 10 Forums

Note

If you're overclocking anything, please stop it and set everything back to default while troubleshooting

Warning

Your CPU temperatures will rise quickly while under this stress test. Keep a keen eye on them and abort the test if overheating occurs.

LarryB · 02 Oct 2015

Good morning Axe0

I am downloading updates now, but the only ones missing were the optional updates, one of which was the Intel chipset drivers which I updated yesterday before the latest dump. All are selected and downloading at the minute

A few restarts will be required, but I will check for updates after each to esnure there is nothing else

If iastor.sys is not updated, I´ll check Intels website against my motherboard make and model abd see if there is a later driver available

If not I´ll switch the controller from AHCI to IDE in the BIOS and see if it boots. The use of IDE may not require the call to the iastor.sys driver which is used for teh AHCI and RAID controllers.

Given the laptop symptoms how it behaves before a crash, I believe we are targetting and narrowing down the source of the issue to either this driver, MB or CPU. I still can´t rule out HDD so I will nab one from work to do some testing before I start looking at the internal hardware replacement should as the MB

Fun and games!

I´ll keep you posted

Cheers

**axe0** · 02 Oct 2015

To rule out the HDD

Diagnostics Test

HDD TEST

Run SeaTools to check the integrity of your HDD. SeaTools for DOS and Windows - How to Use

Note

Do not run SeaTools on an SSD as the results will be invalid.

Run chkdsk Disk Check

Also to note, optional updates sometimes solve problems, the main reason why I suggested it.

LarryB · 02 Oct 2015

Seatools ran earlier in the investigation and all passed

LarryB · 02 Oct 2015

And chkdisk!

**axe0** · 02 Oct 2015

Pff, need to get my glasses. Thought I read GPU but was already wondering from where I came up with that.

LarryB · 02 Oct 2015

Hi Axe0

All windows updates complete. However i cannot find any update for iastor.sys even with the intel driver scan utility. Would you recommend a roll back of the driver, update and hopefully pull a fresh copy?

Setting the SATA controller from AHCI to IDE does not work

Will run cpu test shortly

**axe0** · 02 Oct 2015

You have also checked your manufacturer for driver updates?
For laptops it is important to install most of the drivers via the manufacturer. The manufacturer tweaks the drivers at a certain way so you are forced to install those drivers.
(Remember, I didn't wear my glasses and accidentally didn't gave proper instructions

)

LarryB · 02 Oct 2015

Are you wearing your glasses now!?!?!?!?!!!!

No bother. Yes I pulled drivers directly from acer site after keying in the model and OS. Quite old the drivers are up there, there's not much that is new

Let's give this CPU test a go

**axe0** · 02 Oct 2015

LarryB said:

Are you wearing your glasses now!?!?!?!?!!!!

No bother. Yes I pulled drivers directly from acer site after keying in the model and OS. Quite old the drivers are up there, there's not much that is new

Let's give this CPU test a go

Yes I am wearing my glasses and cleaned them special for you

Keep us posted.