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"RegUtilities cleaned up my PC with a couple of simple steps. The process is SUPER easy and the results couldn't be better. Now my PC starts right up and doesn't show those annoying messages anymore. You have a life-long customer RegUtilities thanks."

Gina T.
Fort Dodge, IA

System Requirements:

Runs on Microsoft Windows 7, Windows Vista, Windows XP and 2000. Including 32-bit & 64-bit versions. Download size: 3.4 MB

Software Description:

RegUtilities will run a scan of your PC and identify all system errors , missing or corrupt system files. It also identifies errors in ActiveX/COM objects, Windows startups, File associations, File path references, Shared DLLs. To fix these errors, you can purchase a one year registration of RegUtilities software for only $29.95 subscription including all new versions, unlimited smart updates and customer support.

*Free trial is limited to startup customization, registry scanning, backup registry ,defragmenter tool , restore already backed up registry file. To access software full functionality is $29.95 USD subscription including all new versions, unlimited smart updates and customer support for 1 year.

Steps to Repairing NTDLL.DLL Errors for Your Computer


What Is a NTDLL.DLL Error?

If your computer is running slower than usual, or having issues when certain programs are in use, such as Internet Explorer, then you might receive a NTDLL.DLL error message. Depending on the reason for the error, it can appear and pop up with a variety of error messages, including: Crash caused in ntdll.dll!; Unhandled exception at [address] (NTDLL.DLL); [program] caused a fault in module NTDLL.DLL at [address]; NTDLL.DLL error!; STOP: 0xC0000221 unknown hard error C:\Winnt\System32\Ntdll.dll.


What Causes a NTDLL.DLL Error?

A NTDLL.DLL error might be caused by a variety of reasons, including some of the most common being a damaged or corrupt version of the NTDLL.DLL file, in addition to problems arising between various programs and Windows, and issues with hardware drivers that might be corrupt.


How to Fix a NTDLL.DLL Error

There are some different options to repair NTDLL.DLL errors, depending on the root cause of the issue. Try the following solutions, starting with Solution 1, and then moving on to Solution 2 or 3 depending on which solution best fits your needs.


Solution 1: Determine if the error is a temporary, isolated, one-time issue.


  1. Restart your computer.
  2. Run the program you were using when the NTDLL.DLL error occurred to see if you still receive the error message.


Solution 2: Reinstall the program for which the NTDLL.DLL error is occurring.

  1. If you know the error is always caused when opening a certain program on your computer, uninstall the program.
  2. Download and reinstall the program.
  3. Restart your computer.
  4. Run the program to see if the NTDLL.DLL error still occurs.


Solution 3: Disable Add-ons for Internet Explorer


  1. Identify if the NTDLL.DLL error is occurring when you run, close or start Internet Explorer. If it is, then proceed to Step 2.
  2. Open Internet Explorer.
  3. From the Menu bar, select Tools.
  4. Select Manage Add-ons.
  5. Select Enable or Disable Add-ons.
  6. Select Add-ons that have been used by Internet Explorer from the Manage Add-ons window.
  7. Choose the first add-on listed.
  8. In the Settings section of the window, click Disabled.
  9. Click OK.
  10. Restart Internet Explorer.
  11. Determine if the NTDLL.DLL is resolved.
  12. If it’s not, repeat Steps 2 through 11 while disabling an additional add on with each run through of the steps. Once you no longer receive the NTDLL.DLL error, you’ll have identified the add-on that was causing the issue.


One of these solutions should resolve a NTDLL.DLL Error for a faster and better running computer. Please let me know if I can be of further assistance to answer additional questions about this error. Good luck to you!

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