Complete guide to fix Blue Screen DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys)

Have you heard about BSOD error? BSOD or Blue Screen of Death error or stop error is a type of error in Windows computer that Screen displays after the system reaches in such a condition that it can no longer be operate safety. In this article, we are talking about one of such BSOD that is DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys). We will see why this error occurs and know how to fix Blue Screen DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) when it occurs.

More about Blue Screen DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys)

DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) is a BSOD error that typically affects the Windows 10 OS. It appears when the programs crashes or the system gets shutdown entirely. The Blue error shows the error code 0x000000D1 or ErroroxD1 that indicates that a Kernal mode driver is on. For your information, the Kernal mode for an application to run means that all the drivers share a single virtual space. If anything wrong happen to that virtual address, data belongs to the OS or another drivers get compromised. If the virtual address gets crashed, the OS also gets affected by the crash.

“DRIVER_IRQL_NOT_LESS_OR_EQUAL” error could occur when you install some program or after that when trying to run a new hardware or software. In this time of Blue Screen of Death, the troubleshooting can give you the more valuable information.

“DRIVER_IRQL_NOT_LESS_OR_EQUAL” appears with a system driver “ndis.sys”. This is however a driver of the legitimate network interface controller but Cyber crooks often uses the name of this file to camouflage their malware. In such a case, ndis.sys file causes various PC issues. It creates errors, system crashes, freezes. To sum up, DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys)  BSOD may be a malicious infection.

Some ways to fix the Blue Screen DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) error

From the discussion above we come out the following cause of DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) error:

  • Incorrect configured or Outdated device drivers
  • Corruption of Window registry and software changes
  • Malware infection

Updating the drivers can help in fixing DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) error. Since malware could one reason for the infection, you should firstly scan your system with some reputable antivirus to see whether the error gets fixed. You should check for the database is up-to-date or not as well.

Rollback Network drivers

Here is the step how to rollback the Network driver

  • Open Control Panel
  • Search Device Manager

A drop down menu will appear,

  • Choose Network Adapters
  • Then, click on the Roll Back Driver
  • Give confirmation by clicking yes

Update drivers

If yours is the case that makes you difficult using the Windows 10 normally because of the ndis.error, you should update your system driver by following the steps below:

  • Click on Window Key + R, select devmgmt.msc and press enter. Device Manager Window opens
  • Expand the Network adapters on the left pane and click on the right button to go the network device and uninstall it.

You are asked for Administrator password, type the right password and wait for the process to be finished

  • Once finished, restart the PC

The driver gets uninstall. Now you have to reinstall it again. To do this,

  • Go the device Manager
  • Click on Action tab on the toolbar
  • Click Scan for Hardware Changes and wait

The system automatically detect for the driver that are missing. If the process fails, go to the manufacturer’s website and download the driver manually. You should reinstall the wireless network adapters, if you have installed it.

Run SFC and CHDSK scans

  • Go to command prompt, administrative rights.
  • Run System File Checker and Corrupt hard drive Check
  • Run chkdsk/f/r and sfc/scannow
  • Wait till the process is completed and then restart the PC

Restore the System

  • Click on start then locate System Restore
  • Enter the administrative if requires
  • Follow the recommended steps
  • Choose the restore point and restore the system

Repair your error automatically

If you don’t want to use the before mentioned manual methods, here is the recommended products that you can use to fix DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) error.