Bluescreens or BSODs (Blue Screen of Death) are, luckily or unfortunately, quite common and well known by PC users. It is annoying to have a BSOD because it means that something is wrong , but the good part is that they have been designed to tell us precisely what is not working as it should. In this article we are going to tell you what you can do if you are receiving the IRQL NOT LESS OR EQUAL BSOD , and why it appears on your PC.

Blue screens are the worst nightmare of PC users, but as we said they indicate or at least guide us so that we can discover what is happening on the PC so that the system does not work as it should, so first of all You should know that this error can appear in two different ways: one is simply the usual BSOD indicating above IRQL NOT LESS OR EQUAL, but it can also appear as DRIVER IRQL NOT LESS OR EQUAL. In both cases it refers to the same thing, so let’s see what you can do to solve the problem, but first let’s learn why it happens.

BSOD IRQL NOT LESS OR EQUAL, why do I get this error?

This blue screen has to do with IRQs, system interruptions, and since these are static assignments, it necessarily implies that there have been changes in the equipment -both hardware or software-, so it is not something that comes out of its own accord or because some hardware component of the PC has failed.

Fortunately, and since it is not a problem that a component has failed, the solution to this BSOD is relatively simple. In any case, before using any of the techniques that we are going to list below, we recommend that you try to update the operating system to the latest version available, since this is one of the potential solutions that we are going to present to you below. .


As we said, first of all make sure that you have the operating system updated to the latest version; As we have said before, the problem can come from a change in the software, firmware or drivers of the system and since Windows updates frequently incorporate precisely this, it is always a good idea to try to update Windows first of all.

To do this, click on the Start button and select Settings (the gear icon). In the window that opens, go to “Update and security” and check that you do not have any pending updates to download or install (obviously if this is the case, the recommendation is to install them).

Interference due to third-party software

If after updating Windows the problem persists, you should stop to think: what was the last software you installed? One of the main reasons why BSODs appear on the system is due to the installation of third-party software; Anti-virus software in particular is known to be one of the main causes of bluescreens, so if your computer is able to boot, try uninstalling the last thing you installed.

If this is not possible and if you have the system restore function active (highly recommended, be it said), then a restore point will have been created just before installing the software, so it is not a bad idea to restore the system to return the PC to normal. Click the Start button and type “Recovery” to access this utility, and in the window that opens select “Open System Restore.” You can also do this by booting from a Windows installation pen drive.

A window will open in which it will show you the possible restore points, and from where you can also see the affected programs.

Just select the restore point you are interested in and follow the wizard. The computer will restart and carry out the whole process automatically, which normally does not take more than a few minutes (but it depends on the speed of your PC, especially its storage).

Driver problems

If after this you still have the BSOD IRQL NOT LESS OR EQUAL and especially if it appears with the word DRIVER first, you should think about whether you have updated a driver recently and, as we have explained in the previous step, or uninstall said driver and return to the previous version that you had before, or to restore the system since when you update drivers, restore points are also created.

In any case, if you are sure which driver you updated and from which you started having these BSOD IRQL NOT LESS OR EQUAL, you can always try to reinstall it manually. To do this, right-click on the Start button and select Device Manager. In it, display the corresponding section to find the device, right-click on it and select “Update driver”.

You can also select “Uninstall the device” there and restart the computer; When you boot up again, the operating system will detect that the device is missing the drivers and will automatically install them again, so you don’t have to worry about doing it by hand.

Changes or misconfiguration of your hardware

When installing new hardware, it is imperative that you investigate whether it is compatible before doing so. Specifically, switching RAM or going from single channel to dual channel memory (i.e. going from 1 module to 2 modules) is known to cause the IRQL NOT LESS OR EQUAL BSOD. Also, RAM is one of the most frequently updated hardware components, which makes dealing with old RAM modules can cause real problems.

We therefore recommend that you make sure that the hardware device you have installed is indeed compatible with the rest of your system. If this is the case with RAM memory, we recommend that you try installing the modules in other sockets or using a diagnostic tool, such as Windows Memory Diagnostic.


by Abdullah Sam
I’m a teacher, researcher and writer. I write about study subjects to improve the learning of college and university students. I write top Quality study notes Mostly, Tech, Games, Education, And Solutions/Tips and Tricks. I am a person who helps students to acquire knowledge, competence or virtue.

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