How to Repair DRIVER_IRQL_NOT_LESS_OR_EQUAL (storahci.sys) Error on Windows Computer

  • The DRIVER IRQL_NOT_OR_EQUAL error is a blue screen error related to the storahci.sys file.
  • This system file is compatible with all versions of the Windows operating system.
  • When the system files are corrupted or corrupted, problems such as BSODs occur.
  • The main reason for this problem is either a recent hardware change, a lack of device drivers or a communication error between the computer software and hardware.

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Storahci.sys is the name of a .sys (system) file that is used by the Microsoft AHCI controller. .sys files come as a part of the Windows operating system, and are usually either critical system files, or device drivers. Storahci.sys is a generic controller that comes bundled with whichever version of Windows you are using. For the optimal experience, however, it would be best that you install the AHCI controller driver from the appropriate chipset that you are currently using in your system (Intel, nVIDIA, AMD).

To resolve the problem with BSOD on startup, error Driver_IRQL_NOT_LESS_OR_EQUAL (storahci.sys), see Windows 10 BSOD Crashes and Debugging. Hi, I am experiencing BSODs on my computer: I have attached my zip file: Attachment 32190 I have recently made some changes to my… Discussion in ‘Windows 10 BSOD Crashes and Debugging’, Aug 17, 2015.

In a blue screen error, the driver IRQL_LESS_OR_NOT_EQUAL error occurs. The problem has to do with the storahci.sys file, which is compatible with all versions of Windows. BSODs can occur when system files are corrupted or corrupted. Then users start getting an error message that is irql_less_or_not_equal in Windows 10.

The screen suddenly became blocked by DRIVER_IRQL_NOT_LESS_OR_EQUAL (storahci.sys) and my system restarted. How can I resolve this problem?

The purpose of this article is to provide you with complete information about the BSOD error and steps on how to fix it and prevent it from occurring again.

What causes DRIVER_IRQL_NOT_LESS_OR_EQUAL (storahci.sys)?

The DRIVER_IRQL_NOT_LESS_OR_EQUAL (storahci.sys) problem is often accompanied by a system crash and may even cause a so-called BSOD. The main reason for this problem is either a recent hardware change, a lack of device drivers or a communication error between the computer software and hardware. It usually happens when you upgrade to Windows 10 from previous versions of Windows, but it can also happen if you have changed hardware, such as the drive.

Taking care of driver_irql_not_less_or_equal error on Windows 10 is as easy as following these steps.

This article outlines a number of solutions that can help you solve your problem. We’ll describe those solutions that have worked for other users in the past.

How to restore DRIVER_IRQL_NOT_LESS_OR_EQUAL (storahci.sys)?

Updated: February 2024

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You should disconnect all unimportant peripherals and then launch the Windows 10 upgrade setup if you encounter the DRIVER_IRQL_NOT_LESS_OR_EQUAL error when upgrading to Windows 10. The storahci.sys file is used by the AHCI controller on Microsoft computers. Windows specialists say multiple storages can distract the AHCI controller, so you should disable CD/DVD, SSD, HDD, and other peripherals before upgrading to Windows 10.

To fix DRIVER_IRQL_NOT_LESS_OR_EQUAL error, check and update AHCI controller driver. It is recommended to replace the driver either with Intel or AMD driver. Choose the driver according to the chipset that you are using. To check that, you have to hold Windows key and press R. Then type msinfo32 and click OK. Finally, look for the Processor field. If your Windows system runs Intel processor and chipset, then access Intel’s official website and download the correct version of Intel Rapid Storage Technology driver. In case of AMD chipset, go to the official ADM’s website and look for an automatic scanner, which will inform you which driver is needed on your system.

I got this BSOD “DRIVER_IRQL_NOT_LESS_OR_EQUAL (storahci.sys)”. What is it? It appears to be related to SATA. Is it a sign that my SSD is dying?

What should I do if the Windows Push Notification user service is not working?

Perform an SFC scan

  1. You can run CMD by pressing Windows + R and typing Run -> CMD.
  2. Activate the command prompt as administrator by opening it with the command prompt.
  3. Press Enter to run SFC/Scannow.
  4. Approximately 15 minutes will pass after scanning has been completed.

Reset Windows 10 settings

  1. Hold down the shift key while picking “Reset” from the Start menu -> press the power button -> click “Reset”.
  2. Windows 10’s advanced Start menu can’t be accessed if your computer cannot start. Reboot your computer several times during the boot process.
  3. Afterward, click Troubleshooting –> Reset This PC –> Delete Everything.
  4. Install Windows 10 using your installation media if prompted.
  5. If you only want to delete my files, choose your version of Windows, then select only the drive on which Windows is installed.
  6. When you click the Reset button on the beginning of the screen, you will see the changes caused by the reset.
  7. In order to complete the reset, follow the instructions displayed on the screen.

Scan your system for viruses

  1. You can find Windows Defender under Start – Settings – Updates and Security.
  2. The Advanced Scan option can be found under Virus and Threat Protection.
  3. If you want to scan standalone, choose Windows Defender.
  4. By clicking Scan now, you will begin the scanning process.

Update your wireless adapter drivers

  1. Click on Device Manager in the list from the main menu by pressing Windows + X.
  2. Using the right-click menu, select Disable for your wireless adapter.
  3. Select Update Driver Software from the right-click menu of the wireless adapter.
  4. The driver is downloaded by Windows 10 when you select Automatically check for driver software updates.

RECOMMENATION: Click here for help with Windows errors.

Frequently Asked Questions

  1. Press the Windows logo key on your keyboard and type cmd.
  2. Then right-click on Command Prompt and select Run as administrator.
  3. Click Yes when prompted for confirmation.
  4. In the Command Prompt window, type sfc /scannow and press Enter.
  5. Reboot your computer and hope storahci.

It is a legitimate Windows system file. It may be a device driver or an important system file used by the Microsoft AHCI controller. It is also possible that your computer's device drivers are missing or corrupt, preventing the software from communicating with the hardware.

  1. Make sure your drivers are up to date by checking for the latest Windows updates.
  2. Select Start -> Settings -> Update and Security -> Windows Update -> Check for updates.
  3. Then restart your computer.
  4. Make sure that your computer has the latest updates installed.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.