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Fix Ndu.sys Failed Blue Screen Error in 7 Easy Steps

You should update drivers before trying more complicated solutions

5 min. read

Updated onJune 14, 2024

updated onJune 14, 2024

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Have youinstalled the latest Windows 10 OSversion to see how it goes? Unfortunately, some users have experienced some trouble with theNdu.sys error.

This is undoubtedly one of the most common and complicated errors in Windows 10. Rest assured, after following the steps listed in this tutorial, you will fix Ndu.sys errors in Windows 10 and continue your testing of the new operating system.

The errordriver irql not less or equal (Ndu.sys)comes with thetraditional blue screen. In addition, you can see multiple stop code errors likeKMODE EXCEPTION NOT HANDLED (Ndu.sys)orSYSTEM SERVICE EXCEPTION.

This means that if you get it during your usage, it won’t go away unless you reboot your operating system, and even then, it might appear randomly after a few minutes.

This error message is caused by incompatible hardware drivers and, to be more specific, the Wireless adapter driver.

What does NDU SYS mean?

NDU stands for Network Data Usage, and the Ndu.sys driver is a monitoring driver file located in the C:\Windows\System32\drivers path. This service offers the capability for monitoring network data utilization.

This is a BSOD error similar toUnexpected Kernel Mode Trap, and drivers can cause it, so keep them up to date.

Specific files can also cause your PC to crash, and that’s the case withWatchdog.sys system error, so you need to investigate the file that caused the crash.

These are usually driver files, and many reportedStorport.sys GSOD erroron their PC as well. Below are also some of the versions of this error that users are complaining about:

However, you can fix these issues by following the solutions in this guide.

How do I fix ndu.sys blue screen error?

1. Rename the Ndu.sys folder

It’s possible to resolve this occurring BSOD error by renaming the Ndu.sys file from your PC. You should check each of the steps below to do it accordingly.

1.Open the My Computer or This PC icon by double clicking on it or going to theStartmenu and left-clicking.

Double-click to enter theC:/ partitionor whichever partition you have installed your Windows 10 on.
Double-click on theWindowsfolder to open it.
Now search for theSystem32file inside the Windows folder and double-click it to open.
Now go to the System32 folder, look for thedrivers‘ folder, and double-click on it to open.
After you get to thedriversfolder, you will have to look for theNdu.sysfile.
Right-click on the Ndu.sys file and click on theRenamefeature from the menu.
Name the Ndu.sys as Ndu.sys11 or whichever name you wish but be sure to change the name and remember it. If you cannot change the file name, you must log in with youradministrator accountor change your permissions on this specific file to an administrator.
Open again theC: partitionyou have Windows 10 installed.
Double-click theWindows.oldfolder this time because this should be the old Windows operating system you upgraded from.
Open again theSystem32 folderyou have in the Windows.old folder.
Now find and double click to open thedriversfolder.
Search in thedriversfolder for theNdu.sys file.
Right-click on it and select theCopyoption.
Now paste it into thedriversfolder of the Windows 10 version.
Restart your computer.
Check if you still have the same BSOD with Ndu.sys error.

2. Install the latest network card drivers

Updating drivers by yourself can be time-consuming. Therefore, we recommend using athird-party tool to update all your drivers automatically. Doing this will spare you time for manually searching drivers.

3. Check for updates

Updating your Windows 10 system is a good way of keeping your computer away from any BSoD errors.

Updates from Windows usually add new features to the current version, including new security features and repair bugs from the previous OS version.

As Ndu.sys error is a blue screen issue mostly related to your wireless adaptor or driver incompatibility, a Windows Update might address this problem.

4. Use a different Internet connection

If you are using a wired internet connection on your Windows 10 computer, try switching it to Wireless and check if you still have the same error message.

If you are using a wireless Internet connection, do the opposite and switch to a wired internet connection to see if you still get this error message.

5. Reset Windows 10

Note: Another method you can use to fix Ndu.sys errors is refreshing Windows 10. Once you’ve hit the Refresh button, the OS will remove all third-party software installed on your computer.

6. Run the BSOD troubleshooter

Note: BSoD errors are pretty frequent on Windows 10. For this reason, Microsoft added a built-in BSOD troubleshooter to Windows 10’s Settings page.

7. Clean install Windows 10

If nothing worked, performing aclean reinstall of Windows 10is the last resort method.

Starting from scratch allows you to eliminate all the elements that triggered Ndu.sys errors and fix the issue for good.

So, if you want to clean install Windows 10, you need your installation drive or DVD and a lot of patience. The whole process usually takes one hour or two.

How do I fix Ndu.sys failed on Windows 11?

On Windows 11, most of the solutions that have worked on Windows 10 are still applicable. You could try any of the following:

The steps are similar to the solutions described above for Windows 10.

Should you disable NDU?

The NDU system finds peripheral devices; for instance, NDU enables the OS to interface withUSB ports to identify any attached USB devices.

Although deactivating the NDU registry is not advised, it can be helpful as NDU will no longer constantly check for new devices. This reduces the use of available resources like memory and computing power.

We hope these solutions helped you get your network running until Microsoft releases a hotfix for this issue.

This is all you need to do to fix the Ndu.sys error message in Windows 10. Also, if you need further help with this issue, please let us know by posting a comment below.

Fix Ndu.sys Failed Blue Screen Error in 7 Easy Steps#

What does NDU SYS mean?#

How do I fix ndu.sys blue screen error?#

1. Rename the Ndu.sys folder#

2. Install the latest network card drivers#

3. Check for updates#

4. Use a different Internet connection#

5. Reset Windows 10#

6. Run the BSOD troubleshooter#

7. Clean install Windows 10#

How do I fix Ndu.sys failed on Windows 11?#

Should you disable NDU?#