bsod help

[Adele Ki]

Help! My son has Vista Ultimate 32bit on his computer and has gotten a bsod with a stop error code 0x0000007e. I believe this is a driver error. He doesn't seem to have a system restore point, cannot use last known configuration and he recently installed updates. I have booted in safe mode and it keeps going back to the bsod. Tecnical Info:
STOP: 0X0000007E (0XC0000005, 0X87D280AE, 0X8874FBA0, 0X8874F89C)
volsnap.sys - Address 87D280AE base at 87D23000, datestamp 47918f92

 

[theog]

Hi Adele Ki

Run chkdsk.

http://www.vistax64.com/tutorials/67612-check-disk-chkdsk.html?ltr=C

 

[AstaLaVista]

Are you saying you are also getting a BSOD when you try to get into SAFE MODE?

 

[Adele Ki]

I boot into safe mode, have followed the steps listed on the bsod, when i insert the disk and try to get to system repair it goes back to the bsod

 

[Adele Ki]

ok theog, i am going into safe mode with command prompt to run chkdsk.

 

[chsmadden]

From what I understand, your getting a bsod from booting to the disc?

The bsod should tell you what the offending .dll is. Unfortunately, the bsod never hangs around long enough to see it, so you need to know where to look. Then you simply boot into safe mode and delete the file. When I got it, it was a malware .dll posing as a driver. If you cam stay in non-safe-mode long enough, run a full system scan.

 

[Adele Ki]

Cant get to safe mode with command prompt so i cant run chkdsk, keeps going to bsod.

 

[Adele Ki]

I'm getting the bsod from everything, viscious circle. i can get into safe mode but i cant find the offending .dll

 

[chsmadden]

If it's bsoding even in safe mode, methinks it's time for a reinstall. Do you hve another computer you could attach the drive to and save the files?

 

[Adele Ki]

yes I am on the other computer. What is the easiest way to save the files? We just did a reinstall on my sons computer about a week ago, he has school files he needs to save but i can't get to any of them.

 

[chsmadden]

yes I am on the other computer. What is the easiest way to save the files? We just did a reinstall on my sons computer about a week ago, he has school files he needs to save but i can't get to any of them.

Remove the bsod drive from the case, plug the sata and power cables from the functioning computer into the bsod drive and start it up(make sure that you don't distub any other drives connected to the functioning machine.). You will then have access to all of the files on that drive(should mount as D:, E:, etc) drive. This is of course assuming that they're both fairly new desktops. Laptops, you will need a cheap USB adapter.

 

[Adele Ki]

Explain please. This is giving me fits.

 

[Adele Ki]

I have two laptops.
This is the son. Last night, my antivirus popped up with a potential threat. I tried to quarantine it, but another alert popped up for it and it denied access instead. I tried to delete the file, but it was locked in the system. I scanned it, let my antivirus program restart the computer to delete it, and from there is where the problem began.

 

[Frostmourne]

You can use the Ubuntu live cd to salvage your files. Otherwise run malwarebytes to clean your pc.

 

[usasma]

Many different reasons for a STOP 0x7E error. Here's a link to more details about it on my website: BSOD Index

Usual things to check: Insufficient disk space, Device driver, Video card, BIOS, Breakpoint with no debugger attached, Hardware incompatibility, Faulty system service, Memory, 3rd party remote control (usually associated with an error in win32k.sys).

Please also check the list of KB articles to see if any of them seem to fit your circumstances.

Please zip up the contents of the C:\Windows\Minidump folder, and upload/attach the .zip file with your next post. If there's nothing there, please let us know so we can suggest some other places to look.

Finally, if all else fails, try running Driver Verifier to cause the system to crash. The analysis of a Driver Verifier minidump is more likely to identify the culprit.

Here's how to run Driver Verifier:

Using Driver Verifier is an iffy proposition. Most times it'll crash and it'll tell you what the driver is. But sometimes it'll crash and won't tell you the driver. Other times it'll crash before you can log in to Windows. If you can't get to Safe Mode, then you'll have to resort to offline editing of the registry to disable Driver Verifier.


So, I'd suggest that you first backup your stuff 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 Startup Repair feature).


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 "Automatically select unsigned drivers" and click "Next"
If no drivers show up, then 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.


Reboot into Windows (after the crash) and turn off Driver Verifier by going back in and selecting "Delete existing settings" on the first page, then locate and zip up the memory dump file and upload it with your next post.


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.
If that doesn't work, post back and we'll have to see about fixing the registry entry off-line.


More info on this at this link: Using Driver Verifier to identify issues with Windows drivers for advanced users
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