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Windows 7: Random BSOD 0x00000050 "page fault in non paged area"


25 Nov 2012   #1

Microsoft Windows 7 Ultimate 64-bit 7600 Multiprocessor Free
 
 
Random BSOD 0x00000050 "page fault in non paged area"

I've installed Windows 7 recently on a new computer and I've been getting occasional random BSODs since, always 0x00000050 page fault in non paged area, and it never mentions any file. The first few crashes were while surfing internet on Maxthon browser. I switched to Chrome since and haven't had any BSODs until today. Most of the time I'm playing computer games or poker and sometimes surfing poker forums, and haven't had problems with either, but today I was surfing internet and came upon a PDF file and BSOD happened 3-4 mins later. I'm fairly sure all crashes happened while surfing the net but not 100% sure.

FWIW I ran Windows Memory Diagnostic Tool and it came out OK. Also ran a GPU diagnostic, which came out with errors but mentioned that errors are possible since it's not designed for GPUs with so much memory.

I'd really appreciate any help here, thx

My System SpecsSystem Spec
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25 Nov 2012   #2
Arc

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1
 
 

Install Service pack 1.
Learn how to install Windows 7 Service Pack 1 (SP1)
Service Pack Center - Microsoft Windows

Your crash dumps are not showing any finite probable cause. In such a situation, it is better to enable Driver Verifier to monitor the drivers.
Driver Verifier - Enable and Disable
Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.

Let us know the results, with the subsequent crash dumps, if any.
My System SpecsSystem Spec
25 Nov 2012   #3

Microsoft Windows 7 Ultimate 64-bit 7600 Multiprocessor Free
 
 

I ran Driver Verifier, but when I had it enabled I couldn't boot Windows, it kept BSODing when loading the Daemon Tools driver, so I disabled it in safe mode after 4-5 tries. The SF diagnostic tool logs are attached. I'm installing SP1 right now
My System SpecsSystem Spec
.


25 Nov 2012   #4
Arc

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1
 
 

As exactly expected.
Code:
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck C9, {23e, fffff8800325e324, fffff9800b314ee0, 0}

*** WARNING: Unable to verify timestamp for cdrom.sys
*** ERROR: Module load completed but symbols could not be loaded for cdrom.sys
*** WARNING: Unable to verify timestamp for dtsoftbus01.sys
*** ERROR: Module load completed but symbols could not be loaded for dtsoftbus01.sys
Probably caused by : dtsoftbus01.sys ( dtsoftbus01+1324 )

Followup: MachineOwner
---------
You need to uninstall Daemon tools. It is the most frequent BSOD causer.

Then continue with Driver verifier. I expect it should catch something more. Use the computer normally with verifier on, specially surf net, though it will behave a bit laggy.
My System SpecsSystem Spec
25 Nov 2012   #5

Microsoft Windows 7 Ultimate 64-bit 7600 Multiprocessor Free
 
 

OK, I uninstalled Daemon tools, installed SP1 and restarted computer with driver verifier on. I had a BSOD "irql not less or equal" when starting up for the first time, but it has worked since. Driver verifier is still on for me, but so far nothing bad has happened although I did a lot of surfing, and the computer doesn't lag much either compared to normal. I'll leave the verifier on for a while more, and I've attached the diagnostic zip.
My System SpecsSystem Spec
25 Nov 2012   #6
Arc

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1
 
 

Scan the system for possible virus infection.
Uninstall Kaspersky using Kaspersky Removal Tool.
Use Microsoft Security Essentials as your antivirus with windows inbuilt firewall, and free MBAM as the on demand scanner.

Download and install those, and then run full system scans with both of them, one by one.


Let us know the results.
My System SpecsSystem Spec
28 Nov 2012   #7

Microsoft Windows 7 Ultimate 64-bit 7600 Multiprocessor Free
 
 

OK, I did everything. Windows Defender found 2 files infected with VirTool:Win32/Obfuscator.XZ and I quarantined them. The other scans came up with nothing. No BSODs since, although I stopped running Driver Verifier.
My System SpecsSystem Spec
28 Nov 2012   #8
Arc

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1
 
 

Good news. Now observe the system, let us know how it works after some time.
My System SpecsSystem Spec
01 Dec 2012   #9

Microsoft Windows 7 Ultimate 64-bit 7600 Multiprocessor Free
 
 

So far so good I'm gonna mark this as solved and come back later if anything bad happens. Thanks for your help Arc!
My System SpecsSystem Spec
01 Dec 2012   #10
Arc

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1
 
 

You are welcome
Nice to know that it is working stable now !
My System SpecsSystem Spec
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 Random BSOD 0x00000050 "page fault in non paged area"




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