Fix Ntdll.dll error messages in Windows 10

3. Disable IE add-ons

  1. Open your Internet Explorer application.
  2. Left-click or tap on the Tools tab situated on the upper side of the Internet Explorer window.
  3. Now find and left-click or tap to open the Manage Add-ons feature.
  4. In this window, you will have a Show drop-down menu, left-click or tap on the drop-down menu.
  5. Select the Add-ons that have been used by Internet Explorer option.
  6. Now left-click or tap on each Add-on you have in the list and then left click or tap on the Disable button.
  7. After this left-click or tap on the OK button.
    Note: If you get a message saying For changes to take effect, you might need to restart Internet Explorer, left-click or tap on the OK button on this one as well.
  8. Close the Internet Explorer application.
  9. Reboot your Windows device, and see if you still get the Ntdll.dll error message.

4. Disable UAC features

enable disable UAC windows 10, windows 8

  1. Move the mouse cursor over to the Start button.
  2. Right-click or hold tap on it.
  3. From the menu that appears left click or tap on the Control Panel feature.
  4. From the Control Panel window left click or tap on the System and Security feature.
  5. Now in the next window that appears, left-click or tap on the Administrative Tools feature.
  6. Now from the next list that shows search for Local Security Policy, and left-click or tap on it to select it.
  7. On the left side panel left-click or tap on the Local Policies folder to open it.
  8. Within the Local Policies folder double-click or double tap on the Security Options folder.
  9. On the right side panel, you will have to search for all the user account control features and disable them one by one.
  10. After you disabled them reboot your Windows device.
  11. When the device starts, check again if you still get the Ntdll.dll error message.

5. Update hardware drivers

  1. Check on the manufacturer’s website to see if there are any available driver updates for the hardware you have on your device.
  2. If there are, then download and install the latest ones.
  3. After you successfully installed them reboot your device once more.

Updating drivers manually is a tedious process, so we recommend you to use DriverFix (100% safe and tested by us) to do it automatically.

Thus, you will keep your system safe from downloading and installing the wrong drivers.

6. Check RAM and HDD

  1. Check your RAM memory if it is operating in the right parameters.
  2. Check your IDE cable going from the Hard Drive to the Motherboard, if possible replace the cable and see if you still get the Ntdll.dll error messages.

7. Run a system refresh


  1. Move the mouse cursor over to the lower right side of the screen.
  2. From the menu that appears left click or tap on the Settings feature.
  3. Find and left-click or tap on the Change PC Settings feature.
  4. Left-click or tap on the General option.
  5. Under the Refresh Your PC Without Affecting Your Files topic, left-click or tap on the Get started option.
  6. Follow the on-screen instructions to finish the System Refresh.
  7. Check again if you still get the Ntdll.dll error message.

8. Replace your HDD

why is my old hdd lost after upgrade

Make a backup copy of all your important files, folders, and applications and do a complete reinstall of the Windows 10 operating system.

Also, on rare occasions, the Ntdll.dll error message may appear if you have bad sectors on your hard drive, so if you do have a spare Hard drive try replacing the current one and install the Windows 10 operating system on it.

9. Run a clean Windows installation

This is truly an ultimate solution, so be sure you have checked all other solutions before doing it.

Beware that you have to do a clean install what means that you should erase all the tech-data from the drive where you will install Windows.

Thus, you won’t have the same error after.

If you have successfully reinstalled Windows, see if Ntdll.dll error still appears. Now try to install the programs you had before one by one and see when this error occurs.

When you have spotted which software causes the error to appear, contact the support team of that program.

There you go, a few methods that will get your Ntdll.dll error message fixed in Windows 10.

Also, if you do have further questions regarding this subject please write us in the comments section of the page below, and we will help you further as soon as possible.


FAQ: Learn more about Ntdll DLL error

  • How do I fix Ntdll DLL error?

Restart your computer and uninstall the problematic software. If the problem persists, read our exclusive guide to fix the Ntdll error.

  • How do I reinstall Ntdll DLL?

Make sure to use a 32bit DLL-file for a 32bit program, and a 64bit DLL-file for a 64bit program. Here’s a guide on how to fix the missing DLL issue.

  • What is Ntdll DLL used for?

The ntdll.dll is a file created by Microsoft that has a description of NT Layer DLL, and it contains NT kernel functions. Antivirus programs can detect and clean this file if it has become infected.

Editor’s Note: This article was originally published in May 2015 and was revamped and updated in February 2021 for freshness, accuracy, and comprehensiveness.

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