SOLVED! Rtkngui64.exe Ordinal Not Found

The “Rtkngui64.exe ordinal not found” error is one of the errors associated with rtkngui64.exe. When this error occurs, it would prevent Realtek HD Audio from running on your computer which causes all sorts of hassles. In most of the cases, you will experience this error as you start the application. If this error is giving you a hard time, this article will guide you through possible causes and the ideal solutions.

Background Of Rtkngui64.exe 

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“Rtkngui” in Rtkngui64.exe stands for Realtek HD Audio Manager Graphical User Interface. As the name suggests, Rtkngui64.exe is a software component of Realtek High Definition Audio Drive and it is one of the EXE files that operate actively on your PC. The software was developed in 2019 to be used in Windows 7/8/8.1/10 64-bit.

In most cases, the “Rtkngui64.exe ordinal not found” is accompanied by an ordinal number and may include a DLL message. If this error appears on your screen, the Realtek HD Audio codec is unlikely to start. If the program is already running and you get the error message, the program is likely to terminate abnormally.  

What Might Have Gone Wrong 

The “Rtkngui64.exe ordinal not found” error usually happens due to Realtek HD Audio Codec being unable to locate this file during startup. The error might also occur due to a corrupted Rtkngui64.exe file leading to a prematurely-aborted startup process. This problem might be a result of the following reasons.

  • Poor programming
  • Damaged or outdated hardware
  • The program might come into conflict with other software
  • 3rd party plug-ins
  •  Moved/deleted accidentally. It might also be corrupted by a malware infection, causing this error.

How To Solve The Error 

If this error remains unresolved, Realtek HD Audio Codec will not start. Fortunately, Rtkngui64.exe errors, just like most EXE errors, are brought up by particular causes. This makes it easy and quick to resolve the errors. Check the solution methods below that will guide you to resolve the error in a few minutes.

Run Windows Update Troubleshooter

Before thinking of any other resolution method, take advantage of your Windows Update Troubleshooter. Follow the steps below, to use the Troubleshooter, 


  • Step 1: Click the Windows Key and X simultaneously. Select settings.
  • Step 2: Select “Update and Security” from the options, then click “Troubleshooter”.
  • Step 3: Click “Windows Update”. After that, press “Run The Troubleshooter”. Wait for the troubleshooter to finish doing the work for you. You may need to restart your Computer then check to see whether the problem has been solved.

Restore The Computer To Its Restore Point

Sometimes the files might be deleted mistakenly, moved, or corrupted. Restoring the Computer to its restore point will help you revert to the original point before the error began occurring. This technique is commonly used in clearing most EXE files errors. Since “Rtkngui64.exe ordinal not found” is one of the errors, check the steps below to eliminate it in a few minutes. The method works for Windows XP, Vista, 7,8, and 10.

  • Step 1: Press the Windows Start button. Enter “System Restore” in the search box. After that click “ENTER”
  • Step 2: Find “System Restore” from the option and click it. If prompted, enter the administrator password.
  • Step 3: System Restore wizard will take you through steps to choose a relevant restore point. Choose the backup image to restore your Computer.

Reinstall Realtek High Definition Audio Codec

This is a little similar to updating the Rtkngui64.exe File. However, this method applies if you have recently installed the Realtek High Definition Audio Codec software or similar software. Follow the step below to Uninstall the software.

  • Step 1: Press the Windows Start button. Type “Uninstall” in the search box, then press “ENTER”.
  • Step 2: Select “Add or Remove Programs”. Find the software “Realtek High Definition Audio Codec (Windows 7/8/8.1/10 64-bit) R2.82” in the menu. After clicking, follow the prompts to uninstall the software.
  • Step 3: After successful uninstallation, restart the PC, then reinstall the “Realtek High Definition Audio Codec (Windows 7/8/8.1/10 64-bit) software”.

Update Audio Driver

Your PC might be running an outdated Rtkngui64.exe file which might be causing this error. Try this trick below by following through the steps.

  • Step 1: Right-click on the Start Menu. Select the “Device Manager”. From the results, Select “ Sound, video, and game controllers”. After selecting the option, right-click on “Realtek High Definition Audio”. Now select “Update driver”.
  • Step 2: Select “Search automatically for drivers”. At this step, your PC will require an active internet connection. It will then find and install the latest Realtek driver.
  • Step 3: Restart your PC and go to the system tray or control panel to see if you can find the Realtek HD Audio Manager. Check to see whether it is in the system tray. You can also check inside the control panel if you can’t find it in the system tray.

If it is not there, try updating the audio driver manually. Below are the steps you can follow to reinstall the Realtek HD Audio Manager manually.

  • Step 1: Select “Update driver”. Click on “Browse my computer for drivers”.
  • Step 2: Select “Let me pick from a list of available drivers that are visible on your screen, choose “Realtek High definition Audio”, then click “Next”. Give it time to install.

9 Fixes For Realtek HD Audio Manager Not Working

Frequently Asked Questions

Is Rtkngui64.exe a virus?

No. If you suspect, you can check the location where the File runs from. Consider deleting and cleaning up your PC if it runs from any location other than on C:\Program Files\Realtek\Audio\HDA\’ folder.

Should I delete Rtkngui64.exe?

Some PC users in the past have suggested removing this File from your PC once you encounter “Rtkngui64.exe ordinal not found”. But why delete a legitimate file? Instead, keep it and follow the above techniques to resolve the error. Also, check on the tips below to keep your PC in optimum condition.

Tips And Tricks

  • Keep your PC’s antivirus program up-to-date and running normally
  • Scan your PC regularly
  • Don’t move Realtek High Definition Audio Codec (Windows 7/8/8.1/10 64-bit) from its location

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