DRIVER_IRQL_LESS_OR_EQUAL mfefirek.sys

So I keep getting Blue Screen on my PC. I'm running Windows 8.1 and the message that appears on my screen is DRIVER_IRQL_LESS_OR_EQUAL (mfefirek.sys). Can you help me and tell me what it is and how to fix it?

Thanks a bunch!

Remove Mcafee and replace with windows defender,

How to uninstall or reinstall supported McAfee products using the Consumer Products Removal tool (MCPR)

http://service.mcafee.com/FAQDocument.aspx?id=TS101331

How to turn on or off Windows Defender in Windows 8, Windows RT, Windows 8.1, and Windows RT 8.1.

http://www.eightforums.com/tutorials/21962-windows-defender-turn-off-windows-8-a.html

Please follow the instructions in the link below, to post your crash dumps for analysis.

Blue Screen of Death (BSOD) Created by ZigZag3143 (MS - MVP

http://answers.microsoft.com/en-us/windows/wiki/windows\_other-system/blue-screen-of-death-bsod/1939df35-283f-4830-a4dd-e95ee5d8669d

Hi,

mfefirek.sys is part of McAfee so uninstall it and then run the McAfee Remvoval Tool to

prevent trouble causing remnants. Use Windows Defender which in Windows 8/8.1 is a

full antivirus.

McAfee Removal Tool

http://download.mcafee.com/products/licensed/cust_support_patches/MCPR.exe

List of anti-malware program cleanup/uninstall tools

http://answers.microsoft.com/en-us/protect/wiki/mse-protect_start/list-of-anti-malware-product-removal-tools/2bcb53f7-7ab4-4ef9-ab3a-6aebfa322f75

Uninstallers (removal tools) for common antivirus software

http://kb.eset.com/esetkb/index?page=content&id=SOLN146

---

Note using Win Key + X and Win Key + W (to get to Control Panel, Run, and Settings

as needed). Win Key + D calls the desktop and the using Win Key toggles Desktop

and Start Screen.

Translate the Windows 7 methods and use them on Windows 8/8.1.

Resolving Blue Screen errors in Windows 8/8.1 ****http://windows.microsoft.com/en-ca/windows-8/resolve-windows-blue-screen-errors **** ****Resolving stop (blue screen) errors in Windows 7 - has a section for if you can or can't

start Windows (applies to Windows 8/8.1).

http://windows.microsoft.com/en-us/windows7/Resolving-stop-blue-screen-errors-in-Windows-7 

Check this thread for information using BlueScreenView, MyEventViewer and other methods

to troubleshoot BlueScreens - top 3 replies (+1 other) (applies to Windows 8/8.1)

http://answers.microsoft.com/en-us/windows/forum/windows\_7-system/sometimes-i-get-a-blue-screen-when-using-ie-8/c675b7b8-795f-474d-a1c4-6b77b3fcd990

---

Also do this so you can see the likely bluescreens.

Windows Vista automatically restarts if your PC encounters an error that causes it to crash.

(also Windows 7 and Windows 8)

http://www.winvistatips.com/disable-automatic-restart-t84.html

===========================================================

BCCode: D1     0x000000D1Think Video drivers mainly though it can be others. See the driver section in my generic

bluescreen troubleshooting methods below. BIOS, low level chipset drivers and

antivirus/antispyway/security programs can also cause this. 

---

BCCode: D1     0x000000D1

Bug Check 0xD1: DRIVER_IRQL_NOT_LESS_OR_EQUALThe DRIVER_IRQL_NOT_LESS_OR_EQUAL bug check has a value of 0x000000D1. This indicates that a kernel-mode driver attempted to access pageable memory at a process IRQL that was too high.

Important Info If You Have Received a STOP Code

If you received a blue screen error, or stop code, the computer has shut down abruptly to protect itself from data loss. A hardware device, its driver, or related software might have caused this error. If your copy of Windows came with your computer, call the manufacturer of your computer. If you purchased Windows separately from your computer, Microsoft provides support. To find contact info for Microsoft or your computer manufacturer, Contact Support.

If you have experience with computers and want to try to recover from this error, follow the steps provided in the Microsoft article Resolving STOP (Blue Screen) Errors in Windows.

These actions might prevent an error like this from happening again:

1. Download and install updates and device drivers for your computer from Windows Update.
2. Scan your computer for computer viruses.
3. Check your hard disk for errors.

DRIVER_IRQL_NOT_LESS_OR_EQUAL Parameters

The following parameters are displayed on the blue screen.

Cause

A driver tried to access an address that is pageable (or that is completely invalid) while the IRQL was too high.

This bug check is usually caused by drivers that have used improper addresses.

If the first parameter has the same value as the fourth parameter, and the third parameter indicates an execute operation, this bug check was likely caused by a driver that was trying to execute code when the code itself was paged out. Possible causes for the page fault include the following:

• The function was marked as pageable and was running at an elevated IRQL (which includes obtaining a lock).
• The function call was made to a function in another driver, and that driver was unloaded.
• The function was called by using a function pointer that was an invalid pointer.

Resolution

To begin debugging, use a kernel debugger to get a stack trace.

If the problem is caused by the driver that you are developing, make sure that the function that was executing at the time of the bug check is not marked as pageable or does not call any other inline functions that could be paged out.

BCCode: d1   0x000000d1  <-- read this linkhttp://www.faultwire.com/solutions-fatal\_error/DRIVER-IRQL-NOT-LESS-OR-EQUAL-0x000000D1-\*1210.html?order=votes

---

This is my generic how to for proper driver updates : (update video/display driver and BIOS)

This utility makes it easy to see which versions are loaded : Run DriverView - set VIEW to Hide

Microsoft drivers - update those without Dump in their names. (Also update the BIOS and

low level chipset drivers.)

DriverView - Free - utility displays the list of all device drivers currently loaded on your system.

For each driver in the list, additional useful information is displayed: load address of the driver,

description, version, product name, company that created the driver, and more.

http://www.nirsoft.net/utils/driverview.html

For Drivers check System Maker as fallbacks and Device Maker's which are the most current.

Control Panel - Device Manager - Display Adapter - write down the make and complete model

of your video adapter - double click - Driver's tab - write down the version info. Now click

UPdate Driver (this may not do anything as MS is far behind certifying drivers) - then Right

Click - Uninstall - REBOOT this will refresh the driver stack.

Repeat that for Network - Network Card (NIC), Wifi, Sound, Mouse and Keyboard if 3rd party

with their own software and drivers and any other major device drivers you have.

Now go to System Maker's site (Dell, HP, Toshiba as examples) (as rollback) and then Device

Maker's site (Realtek, Intel, Nvidia, ATI as examples) and get their latest versions. (Look for

BIOS, Chipset and software updates at System Maker's site while there.)

Download - SAVE - go to where you put them - Right Click - RUN AD ADMIN - REBOOT after

each installation.

Always check in Device Manager - Drivers tab to be sure the version you are installing actually

shows up. This is because some drivers rollback before the latest is installed (sound drivers

particularly do this) so install a driver - reboot - check to be sure it is installed and repeat as

needed.

Repeat at Device Makers - BTW at Device Makers DO NOT RUN THEIR SCANNER - check

manually by model.

Manually look at manufacturer's sites for drivers - and Device Maker's sites.

http://pcsupport.about.com/od/driverssupport/ht/driverdlmfgr.htm

Windows 8/8.1 - Hardware and Drivers

http://windows.microsoft.com/en-US/windows/hardware-drivers-help#hardware-drivers-help=windows-8

Windows 8/8.1 - Why isn't Windows finding my device?

http://windows.microsoft.com/en-US/windows-8/why-isnt-windows-finding-device

Windows 8/8.1 - What if a device isn't installed properly

http://windows.microsoft.com/en-US/windows-8/what-device-isnt-installed-properly

---

Memory tests do not catch all errors such as mismatched memory (possible even for sticks

that appear to be identical) and when faster memory is placed in system behind slower memory.

So it is best to also swap sticks in and out to check for those even if all memory tests fail to

show a problem.

To test RAM check here - let it run 4+ hours or so.  <-- best methodwww.memtest.org

For the Windows Memory Diagnostic Tool.

WinKEY + W  - type in the Search box ->  Memory - find Memory Diagnostics tool at top

of list - follow the prompts.

Windows Vista: How to Scan / Test your RAM or Memory with Windows Vista Memory

Diagnostic Tool

http://www.shivaranjan.com/2007/11/01/windows-vista-how-to-scan-test-your-ram-or-memory-with-windows-vista-memory-diagnostic-tool/

How to Run the Memory Diagnostics Tool in Windows 7 (and 8/8.1) - in Windows 8 /8.1the name is "Windows Memory Diagnostic".http://www.sevenforums.com/tutorials/715-memory-diagnostics-tool.html

======================================================

After doing ALL the updates you can, and if the issue continues, then run DriverVerifier.

(Remember to use the Windows 8 methods posted at the top of the original reply above.)

Driver Verifier can help find some BSOD issues :

Using Driver Verifier to identify issues with Windows drivers for advanced users

http://support.microsoft.com/kb/244617

How To Troubleshoot Driver Problems in Windows Vista or 7.

http://www.winvistaclub.com/t79.html 

Using Driver Verifier

http://msdn.microsoft.com/en-us/library/ff554113(v=VS.85).aspx 

How to use Windows Driver Verifier Manager to Troubleshoot & Identify Driver Issues

http://www.youtube.com/watch?v=\_VwIDD9xngM

Driver Verifier

http://www.techsupportforum.com/2110308-post3.html

Using Driver Verifier

http://www.faultwire.com/solutions/using\_driver\_verifier.php 

How to use Windows Driver Verifier Manager to Troubleshoot & Identify Driver Issues

http://www.youtube.com/watch?v=\_VwIDD9xngM 

You can disable Driver Verifier

http://support.microsoft.com/kb/244617

WINKEY + X - RUN - type in -> verifier /reset      hit enter to disable

Use BlueScreenView to see if there is a driver specified in the error message. Also check with

MyEventViewer at the time of the BlueScreen.

If DriverVerifier creates a minidump upload it and post the link here so we can analyze it.

Hope this helps.

---

Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle <- Mark Twain said it right!