How to Fix IRQL_NOT_LESS_OR_EQUAL Errors in Windows 10

You have probably Got A IRQL_NOT_LESS_OR_EQUAL error popup on your computer screen once in a while. It might appear when you try to install a driver or transfer data with external hardware devices.


This error can get on your nerves when it repeatedly occurs while you are working. And you are most probably here to look for a solution to get rid of it. So, look no further as we are here with our troubleshooting guide to fix it.


Several factors can trigger the issue. And based on the different causes, you need to follow different solutions to resolve the issue. To help you decide your best fix, we will discuss its different causes and specific solutions to them as well.

What Is The Error 0xa Irql Not Less Or Equal In Windows?


The error 0xA IRQL Not Less or Equal is one of the common issues you will come across if you use Windows 10, 8, 8.1, or the older versions. The error is also known as the BSOD or the Blue Screen of Death error. Because when this error triggers your computer, your PC shuts down for a while, and the screen turns completely blue.


The blue screen displays the IRQL not less or equal error along with some other information related to the malfunctions. Usually, the error message or popup will contain the 0xA or 0x0000000A error code as well. When this error occurs, you will not be able to use your computer for regular activities until the PC reboots itself.


Before you know how to get rid of the issue, you need to understand what causes the error. Only then you can understand which workaround will work best. So, go through the next section that explains its causes.

What Causes the IRQL Not Less or Equal Error in the Computer?


The corrupted files or the faulty updates or installation/uninstallation process trigger the 0xA IRQL error to occur. But there are several other factors that can trigger it as well. And here are the most common causes in brief –


  • Incompatible External Hardware and Internal Drivers


When the device drivers become outdated, they often become incompatible for functioning correctly. Also, a faulty upgrade or incomplete reinstallation process can trigger the drivers to cause the IRQL error.


Some of the hardware components on your PC can get incompatible with the OS after you upgrade them. Especially on a brand new computer. And while connecting external devices, there can be a conflict between the internal and external devices. The conflict often results in the IRQL not less or equal error.


  • Faulty Software Installation and System Files


While installing a software update, poor network or technical glitch can interrupt the process. And because of such faulty installation, you can face the IRQL error. Also, if you install an older version of Windows over the latest version, this error can occur.


Usually, viruses or sudden crashes during file saving can corrupt the files on your PC. And such files can lead you to the IRQL issue.

How To Fix Error 0xa Irql Not Less Or Equal?


The name of the 0xA IRQL error might sound complex to many of you, but its fixes are not complex. There are several methods that you can use to fix the issue. And here are the IRQL NOT LESS OR EQUAL – Fix for Windows 10, 11, 8, and older versions  –


  1. Repair the Corrupt Files


In case you have upgraded the OS properly or there are no faulty drivers or hardware, then most probably, the corrupted files are the culprit. You must repair them with these steps:


  • You need to click on the Start Menu and type CMD, it will show some matches. Or you can enter CMD on the Search Box from the taskbar.








  • From the matches, right-click on the Command Prompt to bring the drop-down menu.


  • Then click on the Run as administrator option to open the Command Prompt window.


  • On the prompt, type or enter the following command carefully


sfc /scannow


  • From the keyboard, press the Enter key to run the SFC (system file checker) scan for corrupt files.


  • It will take a few minutes to complete the scan, you must not exit or close the prompt or interrupt the process. So, wait patiently.








  • After the scan is 100% complete, you will receive a message that windows have repaired the corrupt files.


  • Finally, restart your PC and you shall not face the IRQL issue anytime soon. However, if the scan finds no corrupt files, follow the next method.


  1. Update the Device Drivers 


To fix incompatible drivers, you can update them. It will resolve the 0xA Irql issue. So, here is what to do –


  • First, right-click on the Start menu and select the Device Manager option.








  • From the left panel of the screen, select and right-click on a device and click on the Uninstall Device option. Then follow the prompts or instructions to remove the unit.








  • Then restart the computer to start reinstalling the right driver.


  • Again from the Device Manager, click on any category to see different devices. Then right-click on the device and select the Search automatically for updated driver software.








  • Finally, click on the Update Driver option but if there is no newer version of the driver, go to the manufacturer’s website. And follow the instructions to get the updated driver.


  1. Update Windows OS


Sometimes outdated or older versions of Windows OS can trouble you with the sudden crash or IRQL not less or equal issue. So, to update the OS, follow these steps right away:


  • You need to right-click on the Start menu and choose the Settings option.








  • From the Settings screen, select the Update & Security section. Once it opens, click on the Windows Update.








  • To start the process, select the “Check for Updates.” After the process is complete, restart the computer.








The latest update will fix the bugs, and your computer shall not crash due to the IRQL error.


Frequently Asked Questions (FAQs):



  • Can USB Drivers Cause the Computer to Crash? 


Yes, USB drivers or other external devices can trigger the computer system to crash and an IRQL error message to pop up on the screen. Too many external devices connected to your computer conflict with the Windows OS and lead you to the issue.


  • Does Removing the External Devices Resolve the IRQL Not Less or Equal Issue?


Yes, disconnecting the hardware devices from the computer can help to fix the IRQL error. Especially if the devices are the culprits that cause your PC to crash.


  • How to Exit the Blue Screen of Death IRQL Error Display?


When the computer shuts off, and you can see the blue screen with the IRQL message, you can restart the computer. Or the computer will restart itself to exit the screen.


  • Can Overheating Cause the 0xA IRQL Error?


Yes, sometimes, when your PC overheats, it can crash and enter a blue screen with the 0xA IRQL error. So, you need to let your PC cool and stop running too many apps in the background.


  • Is the IRQL Error Normal? 


If the IRQL BSOD error occurs twice a year, it is usual for your PC to do so for random bugs. But if it becomes persistent, you need to fix it before it affects the entire OS.




You do not need to panic if you have Got A IRQL NOT LESS OR EQUAL error message on your Windows. Because the issue usually disappears after a restart. But if it keeps causing the computer to crash, you must follow the methods we have reviewed above.


Hopefully, this article can help you solve your problems with ease and quick.

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