How to fix ‘Driver irql not less or equal’ Error

The ‘Driver irql not less or equal’ is a system message from the computer. It is a hardware error message from Windows. This message always pops up when the hard disk for some reason won’t start anymore or the system just switches off in the middle of it. Unfortunately, there isn’t only one cause for all this. The causes may vary. ‘Driver irql not less or equal’ can also happen during the windows install process. People often call a computer technician in this case.

However, the ‘Driver irql not less or equal’ error is quite common, especially when you’re gaming or when high performance is required. This stop code means that the existing driver has a conflict between two or more hardware devices. It also occurs in the memory units (RAM) and may be caused by a driver trying to access a read-only RAM allocation or a location not allocated to the device. This error is caused by faulty, outdated, or corrupt drivers that cause this conflict.

In games, this is usually caused by the GPU (Graphics Processing Unit) drivers and even your keyboard, mouse, gamepad, or other game controlling device. Some programs such as antivirus programs like AVG, IObit, Avast, McAfee, and Norton mostly install drivers to control your online activity and firewall. These drivers may deny activity to another driver or try to change the input from other drivers, hence this error. If this error occurs during an online game, the cause might be faulty Ethernet or wireless drivers. This BSOD error is also common on overlocked and overloaded PCs.

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Possible causes for ‘Driver irql not less or equal’

There are different possibilities for the message ‘Driver irql not less or equal’. This message itself points to a driver, which can be caused by hard disk damage. There are also problems with a defective graphics card or damaged memory latch. In this case, another computer is helpful to exchange hardware or test damaged parts.

The computer systems for which this guide works are:

  • Windows 10
  • Windows 8
  • Windows 8.1
  • Windows 7
  • Windows Vista
  • Windows XP

There is no fixed error. At times the issue is not the driver of the hardware but instead the hardware itself.

One of the possible causes of this issue is a broken hard disk. The easiest way to remove it and test it in a working PC. If it runs there successfully, it may not be the cause of the error message. However, it can also be tested if all cable connections are correctly seated. At times, the system starts after several attempts but still has problems. This gives the impression that the hard disk is damaged but at some times it might turn out that it was the graphics card. Another way is to disconnect all drives (not just the power supply) and then restart your computer.

You can follow the following steps to uninstall drivers:

Press on your keyboard the Windows logo and R at the same time. Type devmgmt.msc and then click OK.

Then in the device manager, expand the category “Network adapters” and right-click on a network device and click Uninstall.

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Then click OK to confirm.

Finally, you can reboot your computer and your problem will be solved.

 

Graphics card or main memory unit causing ‘Driver irql not less or equal:

Graphics card and main memory damage and can lead to faulty data processing, which might seem like hard disk problems. If the hard disk from the possible causes can be excluded from the possible causes, you might find the cause with these two units, since these are mainly the reason for this error.

The best way to fix this problem is to check the memory. We usually have two memory locks (also called RAM) in the PC and already one broken memory chip can lead to this situation. For that simply turn off your PC, disconnect it from the power supply and then remove one of the memory bars. If this still doesn’t work, try another lock.

Sometimes it doesn’t work because the BIOS doesn’t register the change. Then you have to switch to the BIOS before booting and reset all values there.

Graphics card:

This error might have been in the graphics card. This happens relatively often. It’s not every time anyone has several graphics cards lying around at home. In this case, it can be helpful if you rely on another computer for a graphics card. Disconnect both computers from the network before replacing them to avoid damaging the motherboard.

 

Processor heating causes ‘driver irql not less or equal’

The error message ‘driver irql not less or equal’ is mainly said to be a memory processing problem, the processor of course can also be the cause. The problem arises when it gets too hot. It is easier to isolate the error. The cause is rarely a fault in the processor hardware, but rather a cooling problem. If ventilation slits are covered, for example when working with the laptop on your cover/ duvet this can happen. Also if the ventilation slits are covered by too much dirt/ dust on the computer. In such a case, you should clean everything and especially the computer fan.

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The solutions to all the listed problems that bring the error “driver irql not less or equal’ to your computer are listed above. This error can occur due to numerous ways all having different reasons. Mainly people panic and call a computer technician to avoid bigger problems but the above-mentioned solutions might be helpful for you to resolve this problem easily at home by yourself. This way without having to worry and going immediately to get your laptop or computer repaired, you can just get it done yourself.

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