Fix: IRQL_NOT_LESS_OR_EQUAL (ntoskrnl.exe) BSOD

If your computer is blue-screening and you see the “IRQL_NOT_LESS_OR_EQUAL” error, it’s generally caused by a bad driver or hardware issue. In this article, we’ll show you how to fix this error.

What is the IRQL_NOT_LESS_OR_EQUAL error?

The IRQL_NOT_LESS_OR_EQUAL error is a type of blue screen of death (BSOD) error. This error occurs when a lower-level driver attempts to access a higher-level driver. This can happen if the lower-level driver is not compatible with the higher-level driver, or if there is a conflict between the two drivers.

Causes of the IRQL_NOT_LESS_OR_EQUAL error

The IRQL_NOT_LESS_OR_EQUAL error is caused by a variety of things, but the most common cause is a driver issue. When a driver is not written properly, it can cause the IRQL_NOT_LESS_OR_EQUAL error. Another common cause is a hardware issue. If a piece of hardware is not functioning properly, it can also cause this error.

How to fix the IRQL_NOT_LESS_OR_EQUAL error

The IRQL_NOT_LESS_OR_EQUAL error is a type of the “blue screen of death” (BSOD) errors. This error is caused by a driver trying to access a memory address that it does not have permission to access.

There are a few different ways to fix this error, depending on what is causing it.

If the error is caused by a driver, you can try updating or reinstalling the driver. If that does not work, you can try disabling the driver.

If the error is caused by a hardware issue, you can try reseating or replacing the affected hardware.

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If the error is caused by a software issue, you can try reinstalling the affected software.

You can also try a System Restore to a point before you started having this issue.

Fix: IRQL_NOT_LESS_OR_EQUAL (ntoskrnl.exe) BSOD

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1. Check your computer’s memory for errors.

If you’re getting the IRQL_NOT_LESS_OR_EQUAL error, it’s possible that your computer’s memory is corrupt. To check for this, you can use the Windows Memory Diagnostic tool.

To do this, open the Start menu and type “memory” into the Search field. Then, click on “Windows Memory Diagnostic” in the search results.

This will open the Windows Memory Diagnostic tool. Click on “Restart now and check for problems (Recommended)”.

Your computer will then restart and begin checking your memory for errors. If any errors are found, you’ll need to replace your computer’s memory.

2. Check for a faulty hard drive.

Another possible cause of the IRQL_NOT_LESS_OR_EQUAL error is a faulty hard drive. To check for this, you can use the Windows Error Checking tool.

To do this, open the Start menu and type “cmd” into the Search field. Then, right-click on “Command Prompt” in the search results and select “Run as Administrator”.

Once Command Prompt is open, type the following command and press Enter:

fsutil dirty query %windir%

If the output of the command is “Dirty: No”, then your hard drive is not the cause of the error. However, if the output is “Dirty: Yes”, then you’ll need to run a disk check to fix the hard drive.

To do this, type the following command into Command Prompt and press Enter:

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chkdsk C: /f

Replace “C” with the letter of the hard drive that you want to check.

3. Check for a faulty driver.

IRQL_NOT_LESS_OR_EQUAL errors can sometimes be caused by a faulty driver. To check for this, you can try using the Driver Verifier tool.

WARNING: Using the Driver Verifier tool can cause your computer to crash. So, make sure to create a backup of your important files before using it.

To use the Driver Verifier tool, open the Start menu and type “verifier” into the Search field. Then, click on “Create a custom settings (for code developers)” in the search results.

In the Driver Verifier window, select “Create standard settings (recommended)”. Then, click on “Next”.

On the next page, select the drivers that you want to verify. If you’re not sure which drivers to select, you can click on “Select all drivers installed on this computer”.

Once you’ve selected the drivers, click on “Finish”.

Your computer will then restart and begin verifying the selected drivers. If any errors are found, you’ll need to update or uninstall the drivers.

4. Try restoring your computer to an earlier point.

If none of the above tips fix the IRQL_NOT_LESS_OR_EQUAL error, you can try restoring your computer to an earlier point. To do this, open the Start menu and type “restore” into the Search field. Then, click on “System Restore” in the search results.

This will open the System Restore window. Select a restore point that’s before the date when the IRQL_NOT_LESS_OR_EQUAL error started occurring.

Then, click on “Next” and follow the instructions to restore your computer.

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Conclusion

Thanks for taking the time to read my blog post! I hope that this information was helpful to you and that you were able to successfully fix the IRQL_NOT_LESS_OR_EQUAL (ntoskrnl.exe) BSOD error. If you have any further questions or comments, please feel free to leave them in the comments section below.

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