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How to Fix the IRQL_NOT_LESS_OR_EQUAL Error in Windows 11

irql_not_less_or_equal windows 11 


One of the most common error messages that Windows 11 users encounter is the IRQL_NOT_LESS_OR_EQUAL error.


It is a blue screen of death error that indicates that the operating system has detected a problem with a driver or hardware component.

This error can cause your computer to crash, freeze, or become unstable.

It is important to diagnose the root cause of this error and resolve it as soon as possible to prevent further damage to your system.

In this blog post, we will discuss what causes the IRQL_NOT_LESS_OR_EQUAL error, how to troubleshoot it, and some tips to prevent it from happening again.



why this irql_not_less_or_equal windows 11



One of the most frustrating errors that Windows 11 users face is the “IRQL_NOT_LESS_OR_EQUAL” error.


The error message usually appears when a driver tries to access a memory location which it is not authorized to access.


This error can occur due to a variety of different reasons, including outdated or corrupt drivers, hardware incompatibility, and issues with Windows updates.


One of the common causes of this error is incorrect or corrupted system files, which can be caused by malware or viruses.


To solve this problem, it is essential to identify and fix the underlying issue to prevent further damage to the system.




How to fix irql_not_less_or_equal windows 11 



1.Restart your computer





  • Sometimes, a simple reboot can resolve temporary glitches.


  • Press the Windows key and select the Power icon.
  • Choose “Restart” from the options.
  • Allow your computer to restart and see if the error persists.
  • Press the PC power key long press
  • After Screen on to off and Automatically shutdown.
  • Again power key one time press.
  • sometimes Normally open it.




2. Boot into Safe Mode

  • Restart your computer.
  • As soon as the Windows logo appears, press and hold the Shift key.
  • Select “Restart” while keeping the Shift key pressed.
  • In the recovery options, select Troubleshoot > Advanced options > Startup Settings > Restart.
  • Press the F4 key to boot into Safe Mode.

3: Update Drivers

  • Press the Windows key + X and select “Device Manager” from the menu.
  • Expand the different categories and look for any devices with a yellow exclamation mark icon.
  • Right-click on the device and select “Update driver.”
  • Choose the option to search automatically for updated driver software.
  • If Windows finds any updates, follow the on-screen instructions to install them.


4.Rollback or Uninstall Problematic Drivers


  • Open the Device Manager as explained in Step 3.
  • Right-click on the problematic device and select “Properties.”
  • Go to the “Driver” tab and click on “Roll Back Driver” if available. If not, click on “Uninstall Device” instead.
  • Follow the on-screen instructions to complete the process.

5.Run Windows Memory Diagnostic Tool


  • Press the Windows key + R to open the Run dialog box.
  • Type “mdsched.exe” and press Enter.
  • Select the option to restart your computer and check for problems.
  • Windows will perform a memory scan during the boot process and display the results afterward.

6.Check for Malware

  • Ensure that your antivirus software is up to date.
  • Perform a full system scan to check for any malware or viruses.
  • If any threats are detected, follow the recommended actions to remove them.

7.Windows update


  • Press the Windows key + I to open the Settings app.
  • Click on “Windows Update” in the left sidebar.
  • Select “Check for updates” and allow your computer to search for available updates.
  • If updates are found, click “Download” and let the process complete.
  • Restart your computer once the updates have been installed.

8.Perform System Restore

  • Boot your computer using the Windows 11 installation media.
  • Select your language preferences and click “Next.”
  • Click on “Repair your computer” in the bottom-left corner.
  • Choose “Troubleshoot” > “Advanced options” > “System Restore.”
  • Follow the on-screen instructions to choose.

other methods

If you have recently upgraded to Windows 11 and encountered the “IRQL_NOT_LESS_OR_EQUAL” error, fret not, as this common issue has solutions that can help get your system back on track.

This error typically occurs due to incompatible drivers or faulty hardware, but there are steps you can take to resolve it.

Firstly, ensure that all your drivers are up to date by visiting the manufacturer’s website and downloading the latest versions.

Additionally, you can try running a Windows Update to install any pending updates. If the issue persists, you might want to run a memory test to check for any errors.

By following these steps, you can effectively troubleshoot and fix the IRQL_NOT_LESS_OR_EQUAL error in Windows 11, allowing for a smoother and error-free computing experience.




Conclusion: The IRQL_NOT_LESS_OR_EQUAL error in Windows 11 is an issue that can cause frustration for users.

Understanding its causes and implementing appropriate solutions is crucial for maintaining a stable and efficient operating system.

By identifying problematic drivers, updating them, and performing necessary hardware checks, users can resolve this error and ensure the smooth functioning of their Windows 11 system.

Additionally, keeping the system updated with the latest Windows updates can help prevent this error from further occurring.

Overall, by following the suggested steps and remaining vigilant in addressing system issues, users can effectively resolve the IRQL_NOT_LESS_OR_EQUAL error and make the most out of their Windows 11 experience.


   If the problem persists, it’s recommended to contact Microsoft support or seek assistance from a professional technician.

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