How to Fix Blue Screen DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) on Windows 10?

by Jake Doe - -


Issue: How to Fix Blue Screen DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) on Windows 10?

Hi. All of a sudden I’ve started having an issue with my laptop, which goes into infinite loop and throws a BSOD DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys). Any advice how to fix it?

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Solved Answer


DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) is a BSOD, which typically affects Windows 10 operating system. The error may also indicate the error code 0x000000D1. While this bug is not extremely dangerous, it should be fixed ASAP as it indicates system malfunctions and may cause further damage if ignored. Ndis.sys is a legitimate system driver of the network interface controller. However, scammers quite often exploit the names of important system files and disguise malicious software under them. Besides, files like ndis.sys are a target of viruses because once corrupted they call out errors, system crashes, freezes, which is why OS gets more vulnerable. In a nutshell, one of the DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) BSOD causes may be virus/malware infection. In addition, this problem may occur due to the incorrect driver and memory address connection, which cannot be created because the network driver update is missing. Therefore, to fix DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) error on Windows 10, we would recommend updating/reinstalling drivers first and then check the system for malware.

Solution 1. Update Drivers

In case you cannot use Windows 10 normally due to the ndis.sys error, try updating/reinstalling system drivers. This can be done by following these simple steps:

  1. Click Win key + R, type devmgmt.msc, and press Enter.
  2. When the Device Manager window opens, expand Network adapters folder on the left pane, right-click on your network device, and select Uninstall.
  3. If a confirmation window pops up, click OK to proceed. In some rare cases, users are required to enter Administrator password, so if you have received such a permission, make sure that you type in the right password.
  4. Once the process is finished, restart your PC.
  5. Now you have to install the driver you have just removed. To do this, go to the Device Manager as explained above.
  6. Click Action tab on the toolbar.
  7. Select Scan for Hardware Changes and let the system detect and install the missing driver automatically.
  8. If for some reason this process fails, go to the manufacturer’s website and download the driver manually.
  9. If you have installed wireless network adapters, you should reinstall them as well. Once done, DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) bug should be fixed.

Solution 2. Remove malware

As we have already explained, BSOD related to system files or drivers are frequently triggered by malware infections. Therefore, if updating driver did not help to fix DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys) BSOD, we would highly recommend to scan your PC thoroughly using a professional anti-virus. Make sure that the database of the antivirus that you’re using is regularly updates. If you are not sure about this, we would recommend using Reimage. This application collaborates with Avira Antivir, which is a powerful anti-malware featuring the newest virus database.

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