Fix mfehidk.sys BSOD or Blue Screen Error in Windows 11/10

Simple solutions to What failed: Mfehidk.sys that appears with Kmode Exception Not Handled, System Service Exception, Irql Not Less or Equal, Page Fault In Nonpaged Area in Windows 11 and 10.

Mfehidk.sys is a driver file for McAfee antivirus software that runs in the background to ensure real-time protection. Due to flaws in this antivirus file, some computers show Blue Screen of Death. mfehidk.sys BSOD generally appears with Kmode Exception Not Handled, System Service Exception, Irql Not Less or Equal, Page Fault In Nonpaged Area. The error may occur with system crashes, reboot loop, freezing, and hanging of the Windows 11 or 10 PC.

What failed: Mfehidk.sys BSOD error usually appears when there is a problem with McAfee antivirus software such as any corrupted file or compatibility issue. Corrupted system files, damaged registry, interference of third-party software, outdated drivers, malware, and bugs are also the prominent reasons for this problem.


mfehidk.sys BSOD Error in Windows 11 and 10

Here is how to fix mfehidk.sys BSOD or Blue Screen Error in Windows 11/10:

Update McAfee Antivirus Software

Obsolete driver of this antivirus might trigger this Blue screen error because of incompatibility with the existing Windows version or conflict with system files or other programs so check if any update of McAfee is available. If there is, install the update using the following instructions:

  1. Click the System Tray (^) icon on the right side of taskbar.
  2. Right-click on the McAfee Antivirus.
  3. Choose “Check for updates”.
  4. If an update is available, install it.

Updates will fix the bugs, glitches, or problems happening due to the McAfee Antivirus.

Read: How to Fix Mcuicnt.exe Entry point not found in Windows

Delete mfehidk.sys

Several users report on different technology forums that deleting mfehidk.sys file fixes the blue screen bug check issue. Sysinternal tool Autoruns helps in safely removing the driver so head to the steps:

  1. Navigate to sysinternals autoruns.
  2. Click on the link “Download Autoruns and Autorunsc”.
  3. After downloading, extract the file, right-click on Autoruns64.exe, and select Run as administrator.
  4.  Go to the Drivers tab then find mfehidk.sys.
  5. Right click on this file and select Delete.
  6. Restart your system and check if the error is fixed.

Rename mfehidk.sys from Advanced Restart

Since mfehidk.sys is creating problems, renaming the file will prevent the file from loading when opening and running the antivirus. Therefore, change its name using below guide:

  1. Press the Windows + I.
  2. Navigate the System and select Recovery.
  3. Inside Advanced Startup, select “Restart Now”.
  4. Windows will restart into the Choose an option window, here choose “Troubleshoot”.
  5. Select Advanced Options.
  6. Click “Command Prompt”.
  7. Type this command and press Enter:
rename c:\windows\system32\drivers\mfehidk.sys mfehidk.bak
how to fix mfehidk.sys BSOD or Blue Screen Error in Windows 11, 10
  1. Exit Command Prompt.
  2. Choose the option “Continue”.
  3. Restart the computer and see if the issue is solved.

Uninstall McAfee Antivirus using dedicated removal tool

If none of the above methods works to fix mfehidk.sys BSOD error then It’s time to uninstall McAfee Antivirus using the dedicated removal tool. Move forward with the steps and remove the software:

  1. Download MCPR.exe from the McAfee website.
  2. Run MCPR.exe and click Next>>.
  3. Select Agree and then click on “Next>>”.
  4. Write the Security Validation code from the picture the wizard provides.
  5. Select Next.
  6. After Uninstallation of the product, choose Restart.
MacAfee antivirus removal tool restart option

See: How to Uninstall McAfee Livesafe From Windows 11 or 10

Install available Windows update

If your Windows contains a bug that is causing a BSOD (Blue Screen of Death) error, then it may be fixed by a Windows Update.

Windows 10:

  1. Press the Windows + I and choose “Update & Security”.
  2. Click “Windows Update”.
  3. Click “Check for Updates”.
  4. If an update is available, then Install and restart your computer.

Windows 11:

  1. Click on Start and type updates.
  2. Press Enter and select “Windows Update”.
  3. Then, click “Check for updates”.
mfehidk.sys BSOD
  1. Once the update is downloaded reboot the device.

Use SFC and DISM command line utilities

mfehidk.sys blue screen Kmode Exception not handled may appear when System files are corrupted and Windows image is faulty. These circumstances mostly occur due to broken registry, interference of third-party programs, threats, outdated drivers, or bugs.

Thankfully, there are 2 utilities SFC and DISM that can rescue this error and repair system crash. Run them as follows:

  1. Click on Search and type cmd.exe.
  2. Press Ctrl + Shift + Enter and when User account control dialog appears, click Yes.
  3. On the Command Prompt, type SFC /SCANNOW and hit “Enter”.
  4. This process will take some time, stay until the verification and repair are 100 percent completed, and restart the PC.
  5. Confirm that the error is resolved and if it still persists again launch elevated Command Prompt.
  6. Then run the following lines sequentially:
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
mfehidk.sys BSOD
  1. Reboot the device and see if the Blue Screen is rectified.

Perform Disk Cleanup

Installing and Uninstalling the applications can create junk files in hard drive and when they are not deleted computer performance becomes low. These junk files may interfere with mfehidk.sys file and cause the BSOD error. Fortunately, you can perform disk cleanup using the Windows Built-in tool:

  1. Press the Windows and type “cleanmgr”.
  2. It asks you to select which drive you want to clean. Choose “C” or in which Windows is Installed. Click OK.
  3. Wait for the calculation.
  4. It asks “Files to delete”. Check the files which you want to delete. We recommend deleting all of them.
  5. Click OK, then Delete Files.
  6. Wait for the Process to complete.

Restart with Clean boot

Clean boot can help to solve the mfehidk.sys blue screen as this feature prevents unnecessary services and programs from loading at startup. Follow the method:

  1. Click on Start, type MSConfig, and then press Enter.
  2. When System Configuration window appears, go to the Services tab.
  3. Check the option Hide all Microsoft Services.
  4. Click on Disable all and head to the Startup tab.
  5. Select the link “Open Task Manager”.
  6. From the Task Manager, right-click on each item and select Disable.
  7. Close the tool, restart to System Configuration, and click Apply then OK.
  8. Select Restart on the confirmation pop up.

Update McAfee Antivirus Software
Delete mfehidk.sys
Rename mfehidk.sys from Advanced Restart
Uninstall McAfee Antivirus using dedicated removal tool
Install available Windows update
Use SFC and DISM command line utilities
Perform Disk Cleanup
Restart with Clean boot

That’s all!!

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Topics:  Windows
About Sunita
Love to play with Windows 11 and 10. Suggestion - Going for Registry change or system files edit then remember to take a backup or create a restore point before Starting.