The "IRQL NOT LESS OR EQUAL" error in Windows 10/11 usually refers to a system file integrity error. Now your SSD or hard drive, which is responsible for storing important data on your system, can get damaged. And it can result in this particular BSOD error on your Windows PC. Although the solution can also be as simple as repairing damaged Windows OS files with built-in tools. There is also a chance that your RAM has become corrupted and needs to be replaced. Having said that, we have included 7 ways to fix 'IRQL NOT LESS OR EQUAL' error in Windows here.

The most common reason why you might see the 'IRQL NOT LESS OR EQUAL' error is corrupted system files. This can happen out of nowhere, especially if your computer has been shutting down periodically or violently. Thankfully, Windows has built-in tools to alleviate this problem and repair the pre-existing operating system.

One of the easiest ways to fix this BSOD is to simply revert to a previous system restore point. Even if you haven't created one, chances are that Windows or some other app created a system restore point before you made changes to your system. So you can use one of these to restore your system to an earlier state, when the 'IRQL NOT LESS OR EQUAL' BSOD did not occur. To perform a system restore:

Updating Windows as well as device drivers can potentially prevent the BSOD from happening again. To do this we can use Windows Update and check for the latest updates which also include any new drivers for your computer's hardware.