The error “STOP 0x0000000A: IRQL_NOT_LESS_OR_EQUAL”. usually appears at Window Startup. It is often correlated with faulty or incompatible software or hardware. This error mainly means that a driver or kernel mode tried to enter a memory location for which it did not have permission.


“IRL_NOT_LESS_OR_EQUAL” Error usually appears in Windows 10 when you try to start up the Windows. In the process of fixing up this issue of “irl_not_less_or_equal” and the blue screen in Windows 10, you will have to work in the Safe Mode.

You can make an effort to repair the corrupt registry of the files if there is any. Or you can try to restore the whole system and start again fresh.


Method 1: Start Your Computer in Safe Mode

By using the following method, you can start your Windows 10 computer with minimal effort and the use of processes, drivers and features. This method makes sure that you are utilizing a clean environment where there is no interference from outside applications or third-party drivers.

Step 1. Click the “Power Button” on the screen while holding down the shift key.

Step 2. Select “Restart” while holding down the “shift key”.

Step 3. Press “Restart” while choosing “Troubleshoot > Advanced Options > Startup Settings”.

Step 4. Wait for the Windows 10 to reboot and the choose, “Safe Mode”.

Step 5. Do a recheck if the issue still remains.

This method can have either of the two conclusions. Either the system will now work as we wanted it to work, meaning the issue was with the outside apps that you have had installed on your computer or the system will shut down and crash again, showing you that the issue lies deep within the hardware of the computer.

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Method 2: Check Your Memory and Hardware

Make sure you have unplugged all the connected and all the other devices from your computer that are of no use, except the keyboard and mouse. You will need to examine to ensure all drivers are still disabled after rebooting, and one by one, reenable and connect each device.

Step 1. Launch the Windows Memory Diagnostic utility by clicking the Search bar and typing “Memory Diagnostic”.

Step 2. In the following window you will be presented with two options. Windows will be restarted and the RAM will be scanned in the first step.

Step 3. If the RAM scan returns an error, you know what the problem is. To resolve it, all you need to do is replace the RAM in your computer.

Step 4. If, however, the scan found no errors, then the issue lies somewhere else.

NOTE:  Memory Caching should be disabled if it is available in your motherboard’s BIOS. Do not attempt to modify other settings in the BIOS if you do not know what they do. Keep in mind that operating in the BIOS environment can be dangerous.

You should only connect or allow one device at a time, and when you’ve connected and enabled that device, you should use the computer and it. Do this until either all devices have been added and enabled, or until the BSOD appears. If you did not receive an error message, then that driver is clean and you can move on to the next one.

Enter Safe Boot and uninstall the last driver you had in place. Then download and install the newest driver from the manufactory. If you are still facing the problem then there is a compatibility problem between that driver and Windows 8.1 or Windows 10.

Method 3: Refresh or Restore

In Windows 10 you have an option to refresh the computer through which you can reset all the settings on your computer back to its default mode. You don’t have to worry as performing this action will not influence any of the files that you have saved on your computer.

If nonetheless, you end up facing an issue and Windows delete all the saved files during the update, you don’t have to panic. There is an option of system restore. Though if you want this to work you will have to create a “Restore Point” before the software installation.

Step 1. Type “System Properties” into the Search box. Click on “System Properties”.

Step 2. From the System Protection screen, select on “System Restore”.

Step 3. In the pop-up window, select the “Restore Point” you would like to restore to.

Step 4. Click “Next” and “Finish” when you have selected your preferred restore point.

Step 5. When the restoring process is complete, your PC will restart.

Users of Windows 10 can clean install the operating system with a series of advanced recovery options. Alternatively, you can restore your PC using Reset this PC, if you’re running Windows 10.

Step 1. Under the left side of the Settings menu, select on “Recovery”.

Step 2. You can keep any files you have uploaded by clicking on “Get Started” under Reset this PC.

Step 3. Now follow the instructions shown on screen to complete the reset.

Method 4: Repair Your Registry 

Step 1. Go to “Start” button on the bottom left corner of screen and in the search-bar write “cmd’.

Step 2. “Right click” on the Command Prompt and choose “Run as Administrator” from drop-down menu.

Step 3. Next type out the command “sfc /scannow”.

Step 4. Now wait for the scan to complete, after which restart your computer and then all the corrupted files will be replaced via reboot.

Method 5: Check Your Disk For Errors

The IRQL_NOT_LESS_OR_EQUAL error is also caused by corrupted files and errors on your disk. Try checking your disk as well, if you have already tried out the Method 1.

The IRQL_NOT_LESS_OR_EQUAL error is also caused by corrupted files and errors on your disk. Try checking your disk as well, if you have already tried out the Method 1. A disk check can be performed using the Command Prompt on Windows 10.

Step 1. Enter the “chkdsk C: /f” command as an administrator in Command Prompt. You need to change C with your hard drive partition letter.

Step 2. You can detect and repair logical problems with your drive by running chkdsk D: /f. Physical problems can be corrected by running the /r command as well.

Step 3. Click the right mouse button on the drive that you want to check in Windows 7, 8.1.

Step 4. Select “Properties” and then “Tool”.

Step 5. Scroll down and click “Check” under ‘Error checking’.

Method 6: Run a Full System Scan

Step 1. Go to “Start” button on the bottom left corner of screen and in the search-bar write “defender”.

Step 2. Now double click on the Windows Defender to start the tool.

Step 3. On the left side panel choose the “Shield Icon”.

Step 4. On the next pop-up window select the “Scan Options”.

Step 5. Launch an entire system malware scan by checking the entire scan option.

The IRQL_NOT_LESS_OR_EQUAL BSOD error can be caused by malware on your computer. Scan your computer for malware using a full system scan.

Method 7: Perform a Clean Windows Install

However, if all the methods above mentioned have not helped you in any way the last option remaining is to Perform a clean Windows install.

In this scenario, you will need a Windows installation disk or USB drive to erase everything on your C: drive as well as install a new copy of Windows 10, but as mentioned, this should be the last alternative.

Step 1. Open the “Settings” by going to Windows icon.

Step 2. Choose “UpdateandSecurity”.

Step 3. Now choose “Recovery”.

Step 4. In the drop-down menu of “More recovery options”, choose“Learn how to start fresh with a clean installation of Windows”.

Step 5. Select “Download tool now” from the list below.

Step 6. On the “RefreshTool.exe” double click.

Step 7. Then select “Accept” to agree to all the terms of the licence.

Step 8. Next select from the given options as “Keep personal files only” or “Keep nothing” as per your choice.

Step 9. Select “Install” and the procedure will start. When you click on Refresh, Window 10 will be downloaded and reinstalled on your computer.

Step 10. Now you just have to wait. Even though the Windows 10 Setup dialog window is still visible, you can cancel the process in case you change your mind.

By using the Windows Refresh Tool, you’ll be able to accomplish this task very quickly and easily.

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In this article above you have a list of Methods which can help you in solving the “IRL_NOT_LESS_OR_EQUAL” Error, in easy following steps.