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: needing help with random BSODs

27 Sep 2010   #21
Microsoft MVP


Probably the webcam (the driver is from 2006 - PFC027.SYS Mon Dec 04 22:34:41 2006 (4574E8D1)

Please run Driver Verifier according to these instructions:
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/Win7 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"
NOTE: You can use Low Resource Simulation if you'd like. From my limited experimentation it makes the BSOD's come faster.
- Select "Select driver names from a list" and click "Next"
Then select all drivers NOT provided by Microsoft and click "Next" (NOTE: just select PFC027.sys if you just want to test that one driver)
- Select "Finish" on the next page.


Built by: 7600.16617.x86fre.win7_gdr.100618-1621
Debug session time: Mon Sep 27 00:29:24.191 2010 (UTC - 4:00)
System Uptime: 0 days 0:17:59.800
Probably caused by : NETIO.SYS ( NETIO!NsiEnumerateObjectsAllParametersEx+187 )
PROCESS_NAME:  svchost.exe
Bugcheck code 0000000A
Arguments 80008084 00000002 00000001 830b45ca
Built by: 7600.16617.x86fre.win7_gdr.100618-1621
Debug session time: Mon Sep 27 00:10:47.722 2010 (UTC - 4:00)
System Uptime: 0 days 0:17:45.332
Probably caused by : afd.sys ( afd!AfdAllocateBuffer+18 )
Bugcheck code 000000C5
Arguments 00808004 00000002 00000001 83128067
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).

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:
Delete these registry keys (works in XP, Vista, Win7):
        HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\VerifyDrivers
        HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\VerifyDriverLevel
More info on this at this link: Using Driver Verifier to identify issues with Windows drivers for advanced users

My System SpecsSystem Spec

 needing help with random BSODs

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar help and support threads
Thread Forum
Random BSODs during random tasks, numerous BCCodes.
For some reason, my last post here regarding this issue was deleted after ~2 days without warning or response from anyone, so here I am again now that I can view this section once more. For the past week or so now, my PC has been randomly BSODing at seemingly random times.. mostly when gaming....
BSOD Help and Support
Random BSODs with random intervals (have files from SF diagnostics)
Getting random BSODS from 5 times a week to 2 times a week to 0 times a week its really random and i hope the files can describe the issue.
BSOD Help and Support
BSODs, Random times, random error messages.
Hi all, first off, thanks for reading this. Basically, my current build is about 2-3 years old, the newest thing being my PSU (which I replaced after several issues with the GPU drivers constantly crashing, turns out it wasn't the power anyway...) For the past few weeks, I've been having...
BSOD Help and Support
Random BSODs Caused by Random Files with Differing Stop Codes
Since 16 Feb 2013 to today 22 Feb 2013 I've been getting Blue Screens; these appear to be completely random each time with different stop codes and (according to Blue Screen Veiw) are caused by different files. For example; Caused by ntkrnlpa.exe or atikmdag.exe, or ks,sys, or USBPORT.SYS, or...
BSOD Help and Support
Random BSODs during random tasks. Latest error: 0x1000007e
Hey folks. Acer AS4830TG-6808 Win7 Home Premium x64 Acer OEM Machine is less than a month old Added 4GB Ram stick (PNY, now total of 8GB) Have been getting random BSODs over the last week or so. I'm not sure of the reasoning, however I suspect it may be gaming related. Errors began while...
BSOD Help and Support
Random BSODs; Firefox 4 random crashes
I recently built a new desktop PC running a clean install of Windows 7 Ultimate 64-bit retail version (see my system specs). All hardware was purchased new, and all software installed were fresh installs. All Windows Updates were applied successfully, including SP1. I have also updated all drivers...
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.

й Designer Media Ltd

All times are GMT -5. The time now is 23:22.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App