How to Fix IRQL Not Less or Equal Error on Windows XP, Vista, 7, 8, 10

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If you are facing IRQL Not Less or Equal error on Windows XP, Vista, 7, 8, 10, read on to fix IRQL Not Less or Equal Error on Windows.

BSOD (Blue Screen Of Death) is a common problem or error in Windows operating system. BSOD, also known as shutdown error, occurs when your system shuts down or resumes from anywhere due to various software or hardware issues. While updating Windows system PC to Windows 10 operating system, you will get “IRQL Not Less Or Equal” error.

IRQL error preview not less or equal

IRQL stands for Interrupt Request Level. If you see a “Bug Code 0xA IRQL Not Less Or Equal” error, it means that a driver illegally accessed a memory location while NT is working on a particular IRQL. This is a serious driver coding error. If you are a creator, your code attempts to use an illegal memory location.

Hardware and software issues cause this error, it shuts down the computer and displays very vital details. The main causes are faulty hardware, corrupted system files, incompatible old drivers, and more. Based on the BSOD error, you will need appropriate means to identify and resolve it.

IRQL Not Less or Equal error – Main causes:

  1. When the system file gets corrupted, the main reason for the corruption of the system file is virus attack or malware infection of Windows system file or program file related to Windows operating system.
  2. If the one parameter is not greater than 0x1000, the problem is potentially a NULL pointer differential when not downloaded correctly.
  3. When the CPU exceeds a particular temperature, the PC instantly shuts down via BSOD to protect the CPU from damage.
  4. The driver is not a companion. After downloading the new material, its driver struggles with the previous driver, resulting in Blue Screen Of Death.
  5. There is a hardware problem. The last installation or uninstallation of the application or software may damage the registry.
  6. Upgraded or relegated installations of Windows can lead to inappropriate modification of system files and fights between different versions of Windows.

Various methods to fix IRQL error not less or equal:

Method 1: Uninstall the problematic drivers:

  • To apply the run zone, you need to press Win + R at the same time.
  • Then you have to mention “devmgmt.MSC” and click “OK”. After that, the Device Manager window will launch.
  • On the Device Manager tab, locate the faulty driver. If your driver is having trouble, you will see the “IRQL Not Less Or Equal” error in the device name.
  • After that, tap on the device name and choose the “Uninstall” tab.
  • If you are prompted to verify the uninstallation, check the “Uninstall the driver software for this device” box and press the OK button.
  • Finally, start your device (PC or laptop) and evaluate to see if the BSOD is gone or not.

Method 2: disable the cache memory:

The Windows 10 operating system uses memory caching to temporarily save data in the main memory (RAM) of your PC. While this aspect is an effective method for easy and quick access, it frequently prevents the IRQL Not Less Or Equal code error. You can turn off this feature to resolve the “IRQL Not Less Or Equal” error.

  • The main and essential point is to restart your PC and press the F2 key to launch the BIOS settings.
  • Next, find the ‘Memory Caching’ aspect and turn it off.
  • Now open your PC again and check if it fixes the Blue Screen Of Death error.

Method 3: Check for the latest updates and run the driver verifier:

  • First, go to the Start tab> Settings and click on the “Update & Security” option.
  • In the Update & Security tab, click on “Check for Updates” available on the right side of the window.
  • Now mention the cmd code and find the one that coordinates the best, then select Run as administrator to precede it.
  • Mention the verifier and press the “Enter” tab to precede it.
  • Select “Create standard settings” and click on the “Next” tab to precede it.
  • Choose “Which drivers to confirm> Next> Finish.”
  • Finally, you need to restart your PC and then Windows will put extra strain on your drivers to help you fix the error.

Method 4: run the hardware diagnostic:

  • Open the search bar and enter the command “Memory diagnostic”, then tap on it.
  • Then hit the “Diagnostic”, which will prompt you to restart the computer instantly or check on the next restart.
  • Now analyze it and it will show a list of tricky errors found at the time of scanning.
  • Modify any faulty hardware found during the scan, and then restart your computer.

Method 5: Uninstall recently installed software:

If the IRQL (Interrupt Request Level) error occurred after downloading new software, it would show you that it is malware or virus. Malware and virus can lead to BSOD and can cause many problems to PC. An immediate solution is to instantly uninstall or remove the currently installed software.

  • First, choose Start> Settings> Apps on your device or check the location where you have installed any apps or software.
  • Now select “Sort by” and search for the latest applications installed on your computer.
  • Finally, choose the latest software (which you think is a virus) and hit the “Uninstall” button.

Method 6: System restore:

  • First, open the run box, mention “rstrui.exe” and click on the “OK” tab.
  • Press “Next” when the system restores the open window on the screen.
  • Now choose a “restore point” that was generated before this problem occurred.
  • Press “Next” to follow the on-screen guide provided to you, and press the “Finish System Restore” button.
  • Finally, restart your computer and check whether the IRQL Not Less Or Equal issue is still present or not.

Final words:

While playing or updating the system, you will receive errors, and “DRIVER IRQL Not Less Or Equal Error” is one of them. IRQL Not Less or Equal issue is a common BSOD (Blue Screen Of Death) error in computers or laptops, and it happens more often when Windows candidates try to update their PC to the latest version. Hope the above fixes help you to resolve IRQL Not Less Or Equal blue screen error.

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