If your computer suddenly shows a blue screen with the line lỗi IRQL_NOT_LESS_OR_EQUAL and you are wondering why it appears then this article is for you.

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Below, IT Tips will list some possible causes of IRQL_NOT_LESS_OR_EQUAL Windows 10 error such as:

  • Corrupt system files – The cause may be because the Windows system file or the program file related to the Windows operating system is attacked by a virus.
  • Incompatible device drivers – After installing the hardware, the new driver is not compatible leading to BSOD.
  • CPU overheating – When the CPU is above a certain temperature, the computer will immediately shut down and show BSOD to avoid damaging the CPU.
  • Update Windows or downgrade Windows version – Windows updates or downgrade installations may cause system files to be improperly replaced and cause conflicts between different versions of Windows.
  • Faulty hardware – For example, the motherboard or RAM is damaged.
  • Registry error – Installing or uninstalling software may result in Registry errors.
  • Software not installed properly.

Uninstall Malware to fix errors

If the IRQL_NOT_LESS_OR_EQUAL error occurs after you install a software, it may be because the software has a virus that causes the computer to have a blue screen.

So you can uninstall this software to see if it can solve the IRQL_NOT_LESS_OR_EQUAL error.

1. Click Settings are from Start to continue.

2. Click Apps on page Settings.

3. Click Apps & features and set sort by Install date on the right to continue

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4. Click on the application and select Uninstall.

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If you uninstalled recently installed software and still get the IRQL_NOT_LESS_OR_EQUAL error, then you can try the following method.

Cool down computer temperature

The computer generates large amounts of heat when it is running. If the computer accessories don’t remove the hot air from the computer as soon as possible, it will cause the CPU temperature to be too high, so you need to take the following steps to cool down your computer.

Here are some ways to reduce the computer temperature:

  1. Upgrade CPU fan. If the CPU fan’s performance is not high, the heat generated by the computer cannot be removed in time.
  2. Install another fan. One fan may not solve the problem of CPU overheating, so installing multiple fans will do the trick.
  3. Install the Water Cooling Kit (water cooler). If your computer is highly configured and the fan is not helping the CPU temperature problem, you can install a water cooler. It is a very safe accessory and will not damage your computer.

The IRQL_NOT_LESS_OR_EQUAL error in Windows 10 can be caused by a problem with RAM, so it will be necessary to check the RAM. But how to check if the RAM has a problem or not? Windows Memory Diagnostics will help you do just that.

Here are the steps to check if the RAM is the problem:

1. Type Memory Diagnostic in the search box and click Windows Memory Diagnostic to continue.

2. Click Restart now and check for problems (recommended).

Note: Save your tasks and close all windows before restarting.

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You need to wait a while for the computer to find the problems. After completing the search, the computer will display the detected problems on the screen.

Update driver to fix IRQL_NOT_LESS_OR_EQUAL error on Windows 10

Caused by driver incompatibility, it is possible that the driver has not been upgraded to the latest version, causing conflicts between drivers. So one way to solve the IRQL_NOT_LESS_OR_EQUAL error is to update the Driver.

Here are the steps to update your Driver.

1. Open File Explorer and right click on This PC to continue.

2. Select Manage to continue.

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3. Select Device Manager below options System Tools to continue.

4. Right click on the disk device below Disk Drives, then press select Update driver.

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When the process is finished, restart your computer to check if the IRQL_NOT_LESS_OR_EQUAL error has been resolved.

Launch Hardware Troubleshooter

Hardware failure can also cause IRQL_NOT_LESS_OR_EQUAL errors. Try running the Troubleshooter to check if there’s a problem with your hardware.

You can run the troubleshooter by following these steps:

1. Click Settings are from Start menu to continue.

2. Click Update & security on page Settings to continue.

3. Click Troubleshoot and choose Hardware and Devices on the right to continue.

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4. Click Run the troubleshooter to continue.

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Now wait for the computer to detect the problem. After the scan is complete, if there is an error, it will be displayed. And then select the error you want to fix.

Launch Driver Verifier

When the IRQL_NOT_LESS_OR_EQUAL error occurs you can run Driver Verifier to resolve it but this method will be more advanced than the mentioned methods.

1. Enter cmd in the search box. Then right click on it and select Run as administrator to continue.

2. Enter verifier in the window Command Prompt and press Enter to continue.

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3. Select Create standard settings and click Next to continue.

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4. Select the drivers you want to verify and click Next to continue.

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5. Select the drivers you want to verify at the top and click Finish.

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Then restart the computer and Windows should help you solve the problem.

Above are ways to fix IRQL_NOT_LESS_OR_EQUAL error on Windows 10. If you have successfully fixed the error, please leave a comment in the box below to let us know.