DRIVER_IRQL_NOT_LESS_OR_EQUAL is one of the most common BSOD error in Windows. It’s also known as the “STOP: 0x000000D1” error. It is a driver related error that will happen on your computer when a driver stopped working.

This error appears on many versions of Windows OS, including Windows XP, Windows 7, Windows 8, 8.1 as well as Windows 10.

Most cases, when this “Blue Screen Of Death” error occurs, it always shows you a .sys file name of the driver that caused this error. In the case of the DRIVER_IRQL_NOT_LESS_OR_EQUAL error shows which driver is corrupted, just uninstall and then reinstall the drive.

However, sometimes, this error just comes with the “DRIVER_IRQL_NOT_LESS_OR_EQUAL” message. It does not show any file name to help you troubleshoot. In this case, your computer isn’t able to identify the cause of the error. One or more drivers on your computer could be corrupted.



After reading the above contents, we think you do know very well about what this error is. To solve this problem, you will have to remove or update the driver which is creating this error.

Most cases, all BSOD dump error shows you the driver file name which creating problems like abc.sys or xyz.sys.

With that .sys file name, you will be able to find out the full name of the driver and then replace it.

But how to find the name of the driver from the example.sys file?

The simplest way to find out the full name of the driver is going to website and enter that .sys file and search. For example: If the BSOD error shows “rtwlane.sys“, simply enter it in the search box and click “Search” button.


It will show you a full name and description of that .sys file. You will know which driver you have to reinstall.

Next, download the latest version of that driver from the official website, and then reinstall it. Or just uninstall and then install it again.

Most common corrupted drivers file names:

  • athw8x.sys – Atheros Wireless LAN Driver
  • tcpip.sys – Microsoft TCP/IP Driver
  • igdkmd64.sys – Intel Graphics Driver
  • usbuhci.sys – UHCI USB Miniport Driver
  • Netio.Sys – Network I/O Subsystem
  • rtwlane.sys – Realtek PCIEWireless LAN PCI-E NIC driver
  • iaStor.sys – Intel Storage Drivers

If the BSOD occurs and prevent you from accessing your computer, reboot your computer and turn it to “Safe Mode with Command Prompt“.

Next, type: Del /F /S /Q /A “C:\Windows\System32\drivers\rtwlane.sys”

Once the driver is deleted, you will be able to boot into your Windows computer. If your main Windows drive is not C, just change it to the correct letter.

What about the BSOD error doesn’t show you any .sys file? In this case, you have to download the latest versions of all drivers on your computer. And then replace all of them with the newest one.

Tip: Try to disable unnecessary hardware and drivers to determine which hardware & driver caused this error. It’s a good solution to help you find out the cause of the error.

You can also use a premium software (costs you $40 per year) called DriverDoc, which allows you to do a full scan of your computer, find corrupted drivers and replace it. It also allows you to backup the driver on your Windows computer.

You should also check your Windows Update and upgrade all available updates that marked as important.

You Won’t Able To Access To Your Computer?

As we mentioned above, if the BSOD error show you a specific .sys file and you won’t able to access to your computer. Then simply turn your computer into “Safe Mode” with Command Prompt program and type the following command.

But what about the BSOD error isn’t show any .sys file? In this case, there are two options you should consider.

Option 1: Reboot your computer and turn it into “Safe Mode“. Remember to select “Safe Mode” only, to enter your Windows computer in Safe Mode with GUI.

After accessing your computer, go to “Device Manager” and uninstall all drivers on your computer.

How to open Device Manager? Right-click on My Computer icon, select Properties and then select Device Manager.

After uninstalling all drivers, reboot your computer and get back to normal mode.

Next, download latest versions of the drivers and install it into your computer again.

Option 2: This option only works if you haven’t disabled the System Protection feature yet. By using Windows System Restore, you will be able to roll your Windows computer back to the previous point, the time that your computer still not get any error yet.

Tip: Sometimes, a corrupted or bad virtual memory page file could be caused the DRIVER_IRQL_NOT_LESS_OR_EQUAL error. To solve this error, apply the same way we used in this article.

We hope this article can help you to fix the DRIVER_IRQL_NOT_LESS_OR_EQUAL error on your Windows computer. If you have any question or need further help, feel free to contact us.