FIX: Driver irql not less or equal (mfewfpk.sys) error

FIX: Device driver irql not less or isometrical (mfewfpk.sys) misplay

Passionate most every elements related to Windows and conglomerate with his intelligent curiosity, Ivan has delved deep into understanding this operational arrangement, with a specialism in drivers and driver troubleshooting. When he's non tackling... Scan more

Updated: Mar 22, 2021

Posted: Butt 2020

The driver_irql_not_less_or_equal Windows 10 error is commonly caused by the mfewfpk.sys file pertaining to McAfee.
Information technology is highly recommended for you to start Windows in Condom Mode in front applying any of the solutions that we hash out.
You can easily get free of this Windows driver blue screen by completely removing McAfee from your PC.
If your Windows cannot boot imputable the driver_irql_not_less_or_equal error, you should use a Linux boot drive.

driver_irql_not_less_or_equal windows 10

As you know, Windows 10 is available as a free upgrade to all genuine Windows 8 and Windows 7 users.

However, the upgrade mental process to Windows 10 ISN't always smooth and some users report getting driver_irql_not_less_or_equal (mfewfpk.sys) error.

Driver_irql_not_less_or_equal (mfewfpk.sys) is usually followed by a Blue Screen of Death later on which your computer restarts.

This error is caused by a lodge mfewfpk.sys that is related to McAfee Security department Software, and usually, the best solvent to this is to remove McAfee security software before upgrading to Windows 10.

If you have already upgraded to Windows 10, don't worry, there's noneffervescent a way to fix this issue.

How do I fix Driver_irql_not_less_or_equal (mfewfpk.sys) error?

1. Start Windows 10 in Safe Mode

Piece your information processing system boots keep pressing F8 or F2 or Shift + F8.
- This will sometimes allow you to access Advanced Thrill Options.
- If it doesn't work, afterwards your computer resets various times you'll get the option to Restart or to enter Advanced Startup.
- When this happens make sure that you opt Advanced Startup.
Then prefer Troubleshoot.
Next, you need to go to Advanced Options > Startup Settings.
When you enter the Startup Selection you'll have the option for Safe Mode with Networking.
Choose it, and download the McAfee removal tool from the link below.
Function the McAfee removal tool to remove McAfee software completely.
Restart your reckoner.
After you've distant McAfee Security Computer software everything should live working as usual.

If the problem is solved after removing McAfee, you might wishing to keep using Windows Protector or switch over to a different antivirus solution.

Windows Defender offers wholesome protection, but if you want full system protection, it might be knowing establis third-party antivirus software.

2. Move the tough file to a dissimilar directory

Head start Windows 10 in Safe Musical mode.
- To construe with how to do that, be sure to jibe the preceding solution for elaborate instructions.
When Invulnerable Musical mode starts, open File Explorer and go out to the following directory: C:WindowsSystem32drivers
Now locate mfewfpk.sys file and move it to a divers location, outside of the Windows directory.

Later on doing that, resume your PC and the problem should be entirely resolved. Keep in mind that this International Relations and Security Network't a system file, thusly you can also remove information technology if you want.

In well-nig cases, this problem is caused by mfewfpk.sys, and in order to fix this go forth, you require to find and move the file to a different location.

This charge is located in the Windows directory, but information technology's not crucial for Windows, so you can easily move it.

3. Perform a System Restore

Restart your PC a few times during the boot sequence to force your PC in addition to begin Automatic Repair.
A list of options will appear. Prime Troubleshoot > Advanced options > System Restore.
Now prime your username and enter your watchword.
Organisation Restore windowpane should now appear. Click happening Side by side to go on.
If available, hindrance to Show more restore points alternative. Now you should see several restitute points visible. Check the date and time for all accounting entry and select the desired rejuvenate point. Now mouse click happening Next.
Follow the instructions on the screen to reinstate your PC.

After performing a System Restore, your PC should be restored to an earlier state, and the job should be resolved completely.

Keep in mind that this ISN't a perfect solution, and sometimes even the System Regenerate won't embody able to fix your problem.

Use a third-party system restoration tool

Skilled Tip: Some PC issues are hard to tackle, especially when it comes to corrupted repositories or missing Windows files. If you are having troubles fixing an error, your system may be partly broken. We recommend installing Restoro, a tool that will scan your machine and identify what the fault is.
Click here to download and get going repairing.

You can also restore your system files using a third-party specialized tool, so you North Korean won't need to use whatsoever System Restore and mislay your current windows files and settings.

Simply download the instrument, run it, and IT will automatically scan the system for corrupted, tainted, surgery missing files, then it will restore them or put back them accordingly.

Restoro is hopped-up by an online database that features the in vogue functional system files for Windows 10 PCs, allowing you to easily replace any elements that can cause a BSoD error.

This software tush also avail you by creating a restore spot in front starting the repairs, enabling you to easily restore the old version of your system if something goes wrong.

This is how you can fix register errors using Restoro:

Download and install Restoro.
Launch the application.
Await for the computer software to nam stability issues and possible corrupted files.
Press Start Resort.
Restart your PC for all the changes to take effect.

As soon as the fixing process is accomplished, your PC should study without problems, and you will not have to worry just about BSoD errors or larghetto response multiplication of all time again.

⇒ Come Restoro

Disclaimer: This program necessarily to be upgraded from the free version in order to do some particular actions.

4. Use Linux boot take

Download the Linux ISO.
Produce a bootable drive.
Connect iron boot drive to your PC and boot from it.
Once you start the PC in the Linux environment, search for the following: C:WindowsSystem32drivers
Remove the mfewfpk.sysinternal of it.

If driver_irql_not_less_or_equal (mfewfpk.sys) error is preventing you from start Windows, you power make up able to fix the trouble simply past booting from a Linux boot drive.

Keep down in mind that in a Linux environment your drive might non be labeled as C, so you'll have to find the Windows directory on your ain.

This is a bit advanced resolution, so if you don't know what is an ISO single file Oregon Linux, and if you don't know how to create a bootable drive, you might want to understand a tutorial or two or try a different solution.

5. Hit McAfee

Since McAfee is supposedly a cause of this error, removing the program is the safest solution. You can do it from within the device manager, operating room you can use a third gear-party app remotion puppet.

To do this, you will need to download and run a McAfee removal tool. After you've downloaded the puppet, you rightful need to run it and it will polish of McAfee Security Software altogether from your calculator.

If you're getting Low-spirited Screen of Demise with driver_irql_not_less_or_equal (mfewfpk.sys) error past you belik won't be able to access your system.

To download the necessary McAfee remotion tool, so you'll have to start your Windows 10 in Riskless Mode.

⇒ Get IObit Uninstaller

6. Use of goods and services Command Prompt to remove the data file

Correct-sink in the Get-go Carte du jour button or press Windows Key + X.
Now choose Command Prompt (Admin) or PowerShell (Admin).
When Command Prompt starts, run the following command: DEL /F /S /Q /A "C: WindowsSystem32driversmfewfpk.sys

This command bequeath force Windows to remove this file. After doing that, only restart your PC and check if the job is single-minded.

7. Use Windows 10 installation media to perform Automatic pistol Repair

Connect the bootable drive to your PC and boot from it.
In edict to boot from the USB get, you power have to exchange your boot settings in BIOS.
Once you charge from your boot drive, click on Amend your computer option.
Now choose Troubleshoot > Advanced Options > Machine rifle Repair.
Allow the program run its course.
Once the revivif appendage is finished, check if the problem is solved.

If you aren't sure how to do it, know that you can find out how to boot from a USB drive with our useful article. Fair-minded follow the steps and you'll know how to doh it in zero time.

Note: Before you embark on, you need to download Windows 10 ISO using the Media Creation Tool and create a bootable drive. You can do that from Safe Mode or from a working PC.

We hope these solutions helped you with Driver_irql_not_less_or_equal (mfewfpk.sys) error, if you consume any questions, or comments, hardly reach for the comment section below.

Frequently Asked Questions

What does Irql_not_less_or_equal mean?

The irql_not_less_or_equal means that you have a problem caused by a file called mfewfpic.sys that is related to McAfee Security Software. Read how to properly uninstall McAfee if it's troubling you with this thorough guide.
How do you diagnose blue cover?

The BSoD can be caused by computer hardware problems on your computing machine. We've included all the various ways of diagnosing your BSoD reason in our dedicated guide.
How exercise I know if I have bad drivers Windows 10?

Spoiled driver issues induction various calculator glitches, such as BSoD errors. Have a look at our useful article dedicated to a driver updater tool that will automatically check and update your drivers.