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Windows 7: PAGE_FAULT_IN_NONPAGED_AREA code 0x50

06 Dec 2012   #1

Windows 7 32 Ultimate

3 days ago when using ie8 got bsod, which continues on every re-boot right after desktop loads, unless in safe mode. Windows 7 32bit Ultimate

~ Peformed system restore. No luck in fixing.
~ No recent software or hardware installs
~ Works fine in safemode with networking
~ Ran dell hardware diag. all passes
~ ran mem error check. fine
~ swaped ram with another dell laptop. did not change.
~ downloaded bluescreeviewer. Points to netkrnlpa.exe and halmacpi.dll
~ under system devices IDE ATA controller, shows channels 0,1,4,5 and Standard 1.0 serial. A few days a ago it showed channel 3 as well with the yellow triangle! I uninstalled it guessing it could be the problem.
~ disabled speaker.

I have attached minidump files.

Please help. This sucks.

"My" Windows Experience Index Rating is now "0"

My System SpecsSystem Spec
07 Dec 2012   #2

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit


Perform a clean boot:Uninstall AVG, it contributes in BSOD-s:MSE is recommended from a strict BSOD perspective, compatibility & stability compared to other antiviruses/internet security software:-
1. Microsoft Security Essentials - Free Antivirus for Windows
2. Malwarebytes - Free
3. Good and Free system security combination.
Do not start the free trial of Malware Bytes; remember to deselect that option when prompted.

Run a full scan with both (separately) once downloaded, installed and updated.

Upload a screenshot of your hard disk using crystal disk info & summary tab using Speccy:Make a hard drive test from the hard drive manufacturers website.Run Disk Check on your hard disk for file system errors and bad sectors on it:

Run the System File Checker. It allows the user to scan for and restore corruptions in Windows system files.
  • 1. Click on the
    2. Type CMD on Search
    3. Left click and Run as Administrator
    4. Type SFC /scannow
Full tutorial here:Go to this link: and check the system for latest updates. Download and install all latest drivers.

Post back results.
My System SpecsSystem Spec
07 Dec 2012   #3

Windows 7 32 Ultimate

Thanks for responding.

~ I turned off all non-MS services.
~ I downloaded and installed MSE in safe mode, installed and updated.
~ Ran full scan. Came back with 17 or 18 Severe visus alerts, which were deleted.
~ Reset the laptop in normal mode.
~ Ran good for about 10 mins. Then another BSOD appeared. BCCODE 10000008e. Points to ataport.sys
~ I have not downloaded any other programs because of the new bsod.
~ Ran a chkdsk. Left the laptop about 3/4 the way thourgh and when I came back it was rebooting. Did not see any errors.
~ Ran SFC. It did say it corrected several errors.

Old bsod is not happening now. New ataport.sys BSOD is now happening in normal mode. Also, as I continue to work on the laptop it gets slower and slower and slower. Even in safe mode.

Please advise

My System SpecsSystem Spec

07 Dec 2012   #4

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

Sounds like a virus infection. Lets make sure there's no virus:
Make scans with the following:

-Kaspersky TDSSKiller-ESET online scannerThen run WDO:
My System SpecsSystem Spec
10 Dec 2012   #5

Windows 7 32 Ultimate

Kaspersky did find one rootkit. Removed.
ESTE Fond 11 or so more viruses. Removed.

I did not run the WDO yet.

It has been 2 days, 20 or so reboots and shut downs.

No bsods or errors at all.

I have also unintalled severl programs and ran revo unistaller to clean up my registry. All seems to be fine now.

Thanks sooo much for your help.
My System SpecsSystem Spec
11 Dec 2012   #6

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

Good to know!
Post back if they reoccur :)
My System SpecsSystem Spec


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