{BSoD} How to fix IRQL_NOT_LESS_OR_EQUAL Error Windows 10, 8, 7 & XP?

Have you ever been encountered by a memory error called IRQL_NOT_LESS_OR_EQUAL Error (BSoD) on any of the Windows 10, 8, 7, and XP?

Isn’t that frustrating?

BSOD stands for the Blue Screen of Death, which is a common error in the operating system. It can lead your computer to shutdown. This error turns the screen of the system into a blue screen along with detailed information of errors like STOP CODE, or error message, alerts, warnings. The main speculation behind occurring this driver IRQL_not_less_or_equal is because of the incompatible drivers in the system or hardware malfunctions.

Well, this guide will tell you appropriate measures and solutions to diagnose and solve IRQL_NOT_LESS_OR_EQUAL BSOD error in all the versions of Windows (10, 8, 7 & XP).

Solutions to fix IRQL_NOT_LESS_OR_EQUAL Error

So, now let’s quickly jump on the solutions to fix IRQL_Not_Less_Or_Equal error coming on your Windows PC.

Method:1 Running the System File Checker to Fix the Error

The system file checker tool provides you the ability to scan and restore the corrupted files of the system, and the tool is available for all versions of windows.

Follow the guidelines to run the system file checker in your windows 8 system.

  1. Tap the “windows ” button.
  2. Now type “command” while holding CTRL+SHIFT and then hit Enter.
  3. Command prompt dialog will open with permission asking box. Tap on “yes.”
  4. A command prompt will open with a blinking cursor in it.
  5. Copy the “scannow” command and hit Enter.
  6. The following command will open the system file checker, and the scanning of ERROR oxD1 will begin, and it will also check all the other system file problems.
  7. Wait till the scanning is over, and you will get to know the issue, and further fixing those may lead to your excellent working windows.

Method:2 Upgradation of Windows to avoid irql_not_less_or_equal Error

You need to continuously improve your Microsoft to avoid the IRQL Not Less or Equal Error. Updating your windows 10 will improvise your system files, which sometimes are related to the drivers IRQL not less or equal error.

Sometimes fixing these errors like BSOD could be as simple as updating the windows with the latest service pack or any other patches that Microsoft liberates regularly.


To check the update for all versions of Windows follows the following instructions.

  • Click “start” and tap “windows” on your keyboard.
  • Type “update” and then click enter.
  • The windows update dialog box appears.
  • If the upgraded version is available, then tap on the “install update” button.

Method:3 Perform a Clean Boot to Avoid BSoD Error

Prior to hardware components, you need to perform a clean boot to start your system with minimal possible processes and services. Furthermore, you can even turn on your operating system through safe mode to avoid such issues.


The following steps will help you resolve your IRQL error.

  • Type “start” and then type “MSconfig” and hit the enter button.
  • A system configuration tab will open and go to its “boot” tab. Now choose “clean boot.”
  • As you choose a clean boot, the system will restart with minimal disabled processes.
  • Now run each of the applications in your system and notice which creates the problem.
  • In the end, the program will be fixed, updated, or removed to avoid any further inconvenience.

Method:4 Disable Memory Coaching to Windows Error

Till now, we have come to know that this is a memory-related issue, and one of the ways to sort it out is by disabling the memory caching option. More specifically, it is a BIOS that stands for basic input-output settings ( BIOS ), which needs to be disabled.

BIOS is a sensitive area to work. Therefore, follow the below-given steps properly to avoid any error.

  • Switch your system on and press the BIOS setup key to enter the settings screen. The BIOS key is placed differently in all motherboards, and you can find yours, using the internet.
  • Open BIOS settings and look for the option stating memory settings.
  • Disable the option.
  • Press the key F10 to save and exit.
  • Reboot the system.

Method:5 Updating Installed Device Drivers

Drivers are crucial components of the system which primarily communicate between the system and installed programs consisting of several applications. Afterward, these apps need to be reinstalled and updated frequently for smooth system operations.

Therefore, if you are facing issues like BSod ( black screen of death) and Irql_not_less_or_equal in Windows 7, then the driver software must not be compatible with your current windows system.

  • Press ” Windows+ R” to open, “RUN” tab.
  • Type ” devmgmt.msc” and press enter.
  • The device manager opens up and then look for the option stating “device adapters.”
  • Click on “graphic device” and select “update driver.”
  • Having an internet connection will give you better results.
  • Once you open “update driver,” you need to choose “Search automatically for updated driver software.”
  • The device manager will further search for drivers online and install them.

Restart the system, and in case if your driver shows, ” yellow mark triangle,” then this means that the driver is not working properly, and to resolve the issue, you simply need to update the driver or reinstall it again.

Method:6 Investigation of Hard Drive Corruption ( CHKDSK/F)

One of the most primary issues regarding irql_not_less_or_equal error is hard drive corruption. In some encounters, the BSod can also be attributed to hard drive corruption.

As your system gets old, it develops errors on the hard disk because of repeated misuse, improper shutdown, incomplete installation of application and software, power outage, and so on. As a result, your system might experience, blue screen of death errors followed by driver IRQL_NOT_LESS_OR_EQUAL.

To clean up this error, Microsoft has included a useful utility known as “chkdsk” which helps you to scan and repair hard disk corruption.

The following are the steps to run “chkdsk” in your windows 10 system:-

  • Open ” start” or “windows ” by clicking the windows icon on your keyboard.
  • Type “command” and run “command prompt.”
  • Remember to run the command prompt as ADMINISTRATOR.
  • Open “CMD” and then further type “chkdsk/f” and Push the Enter button.
  • The check disk will start scanning your hard disk and will stop, and further errors caused due to oxD1.

If all the methods mentioned above do not work, then try reinstalling the windows on your system using a Windows CD or USB flash drive.

Why IRQL_NOT_LESS_OR_EQUAL Memory Error comes in Windows 10?

The driver_IRQL_NOT_LESS_OR_EQUAL is the reason why BSOD popup on your screen when a memory address speculates unauthorized access, which can be a virus or malware. On further speculations, it could be a kernel_mode process or a device driver that tries to access the memory without the user’s permission. As any program in memory is known to be a part of its primary memory via pointers. The pointers come in coded values that are pointing towards its dedicated memory location. When these values of the pointer are corrupted or incorrect, then it causes an error by directing the application towards an unapproved memory location.

The reason behind an access violation is because of these errors in the user-mode program. However, in a kernel-mode, this creates a STOP “error oxoooooooA” message on the black screen of death ( BSOD ).

In the case of Windows 8.1, this error can be sourced right from the time of upgradation from Windows 8 to 8.1, and the reason behind this could be incompatible backup tools, driver devices, antivirus protection software, and in some case system software.

While making such changes in your system, always keep in mind to have a backup of data regularly to avoid IRQL_NOT_LESS_OR_EQUAL error.

Conditions due to which IRQL_NOT_LESS_OR_EQUAL Error Windows 10 Occurs

Here are some of the conditions in which your system gets in and shows these types of Windows memory errors. You can avoid them by simply following

  • Succeeding Ram upgradation

Sometimes when the user upgrades their RAM, the black screen of death ( BSOD ) occurs, and to avoid this the user must always make sure the new RAM is compatible with the device and properly installed into the system.

  • After Windows upgradation

As the user installs the latest version of windows, then again he may encounter the IRQL_not_less_or_equal error, to make sure this does not happen, the user needs to reinstall the upgraded version of windows and check for the situations for which the issue may arise again.

  • Memory Management

When the user processes high-performance demanding software, then the memory management error may occur which sometimes leads to the system failure and causing BSOD.

Ever came across an error like Kmode Exception Not handled Error in Windows? Well, this is a driver error in Windows which you can easily fix. Here is the complete guide to fix error code 0x0000001e on your Windows 10, 8, 7, and XP.

The Final Verdict

The methods given above are appropriate and are accessible for all versions of Windows 10, 8, 7, and XP. The manual solutions on how to fix Irql_not_less_or_equal error is prompted and efficient for all the variants of windows. Moreover, sometimes fixing these errors, you might face some data loss issues.

Also, if you have any questions or suggestions to improve the article, then do enlighten them in the comments section.

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