B.S.O.D. STOP 0x0000007E, unable to boot

MrDobilina · 21 Nov 2011

Dear all,

Firstly, my apologies that I am making a thread as a first post, I hate to do it but am pulling my hair out at the moment.

After reading through the BSOD posting instructions I have a small issue. As I cannot get further than just before the windows logo appears due to this BSOD, I cannot (that I know of) post a crash dump of the issue.

I am currently attempting to build a crash repair DVD from my laptop, but am also looking at using the USB method.

However, I have tried this before and the problem persists. Is there any BIOS boot-able way of getting around this issue?

I have tried the obvious "last known good config", and "safe mode" as well as the various deviations of these. I have managed to get to desktop twice since the error occurred, but for no longer than 5 minutes (which given that the system is going slow due to the error means I can't load any programs).

A brief history of the potential problem:-

A few months ago the system started running slower at start-up after update, taking a good 5 minutes to become stable. At the time I assumed this to be just my pc being annoying and would leave it to load whilst I got on with more mundane tasks. However, more frequently the system would hang whilst playing a game or running two monitors (one with a video the other with firefox).

In the past week the computer has had no extra software added, no updates (save those of avast! antivirus and potentially MS updates) and no hardware updates.

The full content of the specification is:-
STOP 0x0000007E (0xFFFFFFFFC0000005, 0xFFFFF8000C3853FD, 0xFFFFF880009A8E08, 0xFFFFF880009A8660)

And can provide a photo (sorry no dumps or screen shots) of the full blue screen is necessary.

Many thanks to any who take some time to read through this, and more thanks to any who help out.

As I've said, this is a tricky one, I'm in contact with the company who built this PC for me (2 years ago) about the windows 7 DVD as they failed to provide it (yes I've been slow on the uptake).

Edit:- P.s. Forgot to mention that the few times that I have managed to get to the desktop I had unplugged all peripherals appart from keyboard/mouse and monitors. On plugging the Wireless adapter back in and loading firefox the system would freeze. On the second occasion I simply tried to access the start menu and it froze.

FredeGail · 21 Nov 2011

Hello MrDobilina and welcome.

You said something about safe-mode, is it possible to you to get in there?

Fred.

MrDobilina · 21 Nov 2011

Yes, correct - it hangs when it gets to a specific driver dll. Will update later when I get home with which one.

I have borrowed a windows 7 repair disk from one of my friends, it loads to the windows loading screen with it and presents a new error:-

BAD_POOL_HEADER

STOP:- 0x00000019 (0x00000020, 0x90DDD408, 0x90DDD448, 0x08080004)

Will research this new one.

FredeGail · 21 Nov 2011

MrDobilina said:

Yes, correct - it hangs when it gets to a specific driver dll. Will update later when I get home with which one.

I have borrowed a windows 7 repair disk from one of my friends, it loads to the windows loading screen with it and presents a new error:-

BAD_POOL_HEADER

STOP:- 0x00000019 (0x00000020, 0x90DDD408, 0x90DDD448, 0x08080004)

Will research this new one.

Seems kind of strange. I'm sure there's another one that can help us.

Fred.

MrDobilina · 21 Nov 2011

Found the dll thats safe mode crashes at CLASSPNP.SYS, any thoughts?

MrDobilina · 22 Nov 2011

Bump, I have the day off today, so if anyone has ideas I can test almost immediately. Thanks guys

zigzag3143 · 22 Nov 2011

MrDobilina said:

Bump, I have the day off today, so if anyone has ideas I can test almost immediately. Thanks guys

This will help

1-Memtest.

*Download a copy of Memtest86 and burn the ISO to a CD using Iso Recorder or another ISO burning program. Memtest86+ - Advanced Memory Diagnostic Tool

*Boot from the CD, and leave it running for at least 5 or 6 passes.

Just remember, any time Memtest reports errors, it can be either bad RAM or a bad motherboard slot.

Test the sticks individually, and if you find a good one, test it in all slots.

Any errors are indicative of a memory problem.

If a known good stick fails in a motherboard slot it is probably the slot.

RAM - Test with Memtest86+

2-Driver verifier

I'd suggest that you first backup your data and then make sure you've got access to another computer so you can contact us if problems arise. Then make a System Restore point (so you can restore the system using the Vista/Win7 Startup Repair feature).

In Windows 7 you can make a Startup Repair disk by going to Start....All Programs...Maintenance...Create a System Repair Disc - with Windows Vista you'll have to use your installation disk or the "Repair your computer" option at the top of the Safe Mode menu .

Then, here's the procedure:
- Go to Start and type in "verifier" (without the quotes) and press Enter
- Select "Create custom settings (for code developers)" and click "Next"
- Select "Select individual settings from a full list" and click "Next"
- Select everything EXCEPT FOR "Low Resource Simulation" and click "Next"
- Select "Select driver names from a list" and click "Next"
Then select all drivers NOT provided by Microsoft and click "Next"
- Select "Finish" on the next page.

Reboot the system and wait for it to crash to the Blue Screen. Continue to use your system normally, and if you know what causes the crash, do that repeatedly. The objective here is to get the system to crash because Driver Verifier is stressing the drivers out. If it doesn't crash for you, then let it run for at least 36 hours of continuous operation (an estimate on my part).

If you can't get into Windows because it crashes too soon, try it in Safe Mode.
If you can't get into Safe Mode, try using System Restore from your installation DVD to set the system back to the previous restore point that you created.

Driver Verifier - Enable and Disable

MrDobilina · 22 Nov 2011

Lovelly, will get on this, driver one I doubt work as it blue screens in my repair disk during load.

MrDobilina · 22 Nov 2011

zigzag3143 said:

MrDobilina said:

Bump, I have the day off today, so if anyone has ideas I can test almost immediately. Thanks guys

This will help

1-Memtest.

*Download a copy of Memtest86 and burn the ISO to a CD using Iso Recorder or another ISO burning program. Memtest86+ - Advanced Memory Diagnostic Tool

*Boot from the CD, and leave it running for at least 5 or 6 passes.

Just remember, any time Memtest reports errors, it can be either bad RAM or a bad motherboard slot.

Test the sticks individually, and if you find a good one, test it in all slots.

Any errors are indicative of a memory problem.

If a known good stick fails in a motherboard slot it is probably the slot.

RAM - Test with Memtest86+

This post has helped so much, after running memtest it found one of the memory sticks wasnt functioning fully. Opened the case, and looked at the memory closer than before with a maglite torch. Turns out one stick of memory was about 1mm out of alignment and has over time been corrupted.

Removed this stick and managed to boot. Ran CCleaner and it found over 2.1Gb of unneeded data and 440 registry errors. Cleaned those all up and it appears to be running fine if not better than before.

Tested the selected memory in different ports on the motherboard and it came up with a bad bios error. Tried each stick in each port and it was confirmed that that stick has something very wrong with it.

Thanks for all your help guys! I won't close this just yet, I'll leave the system running and try to push it to see what happens.

zigzag3143 · 24 Nov 2011

MrDobilina said:

zigzag3143 said:

MrDobilina said:

Bump, I have the day off today, so if anyone has ideas I can test almost immediately. Thanks guys

This will help

1-Memtest.

*Download a copy of Memtest86 and burn the ISO to a CD using Iso Recorder or another ISO burning program. Memtest86+ - Advanced Memory Diagnostic Tool

*Boot from the CD, and leave it running for at least 5 or 6 passes.

Just remember, any time Memtest reports errors, it can be either bad RAM or a bad motherboard slot.

Test the sticks individually, and if you find a good one, test it in all slots.

Any errors are indicative of a memory problem.

If a known good stick fails in a motherboard slot it is probably the slot.

RAM - Test with Memtest86+

This post has helped so much, after running memtest it found one of the memory sticks wasnt functioning fully. Opened the case, and looked at the memory closer than before with a maglite torch. Turns out one stick of memory was about 1mm out of alignment and has over time been corrupted.

Removed this stick and managed to boot. Ran CCleaner and it found over 2.1Gb of unneeded data and 440 registry errors. Cleaned those all up and it appears to be running fine if not better than before.

Tested the selected memory in different ports on the motherboard and it came up with a bad bios error. Tried each stick in each port and it was confirmed that that stick has something very wrong with it.

Thanks for all your help guys! I won't close this just yet, I'll leave the system running and try to push it to see what happens.

We are just glad you are working.