How to Resolve irql_not_less_or_equal Error in Windows 10



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The irql_not_less_or_equal stop code error is another “blue screen of death” error that abruptly stops your computer. The fact that it triggers an endless restart cycle makes everyone who encounters this problem uncomfortable. Although the error usually occurs at system startup, sometimes it can occur in the middle of an important task. In this case, you will not be able to save your changes, and all progress will be lost.

Although the problem may seem intractable, it can be solved if you know the cause. This article discusses the possible causes of the irql_not_less_or_equal stop code error and nine effective ways to solve the problem. If you have lost unsaved data due to this error, you can recover it with an effective third-party application.

What causes irql_not_less_or_equal?

Damaged system file: Damage to the system file may be caused by a virus attack or malware infection of the Windows system file or software file associated with the Windows operating system.

Driver incompatibility: After installing new hardware, conflicts occur between the driver and the previous driver, resulting in BSOD.

Processor overheating: If the processor temperature exceeds a certain value, the computer will shut down immediately via BSOD to prevent damage to the processor.

Windows updates or retrograde installation: Windows updates or retrograde installation can cause incorrect replacement of system files and conflicts between different versions of Windows.

There is a hardware problem: For example, the motherboard or memory is damaged.

Registry corrupted: A recent installation or removal of software may have corrupted the registry. The software is not installed correctly.

How to fix irql_not_less_or_equal?



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Start the computer in Safe Mode

  1. Hold down the Shift key and press the power button on the screen.
  2. Select the Restart option while holding down the Shift key.
  3. Select Troubleshooting -> Advanced -> Startup Options -> click Restart.
  4. Wait for Windows 10 to restart and select Safe Mode.
  5. Check if the problem persists.

Check your memory and hardware

  1. Open the search function -> type memory diagnostics and open the Windows Memory Diagnostics utility.
  2. In the window that opens, select one of the two options available. The first option immediately restarts
  3. Windows and allows the system to check the memory.
  4. If it gives you an error, you’ve got your answer. Replace your computer’s memory and everything will work normally again.
  5. However, if the check does not return an error, the problem lies elsewhere.

Updating or restoring

  1. Go to Search -> type System Properties -> open System Properties.
  2. Go to System Protection -> click System Restore.
  3. Click Next -> select your preferred restore point in the new window.
  4. After selecting your preferred restore point, click Next -> click Finish.
  5. Your PC will reboot and the recovery process will begin.

Perform a full system scan

  1. Go to Start -> type Defender -> double-click on Windows Defender to launch the tool.
  2. Select the shield icon in the left sidebar.
  3. In the new window, click the Scan Options link.
  4. Enable the Full Scan option to run a full system scan for malware.



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Frequently Asked Questions

  1. Start Windows.
  2. Press the Windows key and the C key to open the Quick Access Toolbar.
  3. Click on Settings.
  4. Go to Change PC Settings.
  5. Select General.
  6. Click Advanced Startup.
  7. Click the Restart Now button.
  8. Go to the Troubleshooting section.

What causes Irql_not_less_or_equal? The error is caused either by a corrupted system file, which usually happens after a Windows update or by a faulty RAM module.

One of the most common Windows crash codes is called IRQL_NOT_LESS_OR_EQUAL. In fact, IRQL_NOT_LESS_OR_EQUAL (sometimes simply called "IRQL") is a typical memory-related error that occurs when a system process or device driver attempts to access a memory address for which it does not have valid access rights.