How To Fix Norton Antivirus Error 8921?

How To Fix Norton Antivirus Error 8921?

When you are using the Norton antivirus application, sometimes, you are bound to face the error code 8921. The 8921 error code causes the antivirus to crash while running. This error code does not mean that the antivirus has some issues. It just happens when the application crashes during runtime. Error codes can be annoying and might interrupt your work unless the antivirus is handled correctly.


The error code can change if the issue is not addressed early on. There can be many instances like deletion of files or new files appearing out of nowhere. The error code might occur due to a virus infection on your computer, and this will also cause a sudden drop in the Internet speed.


The error code is read as "Error 8921: Norton Antivirus has encountered a problem and needs to close. We are sorry for the inconvenience."


  • Step 1:Windows crashes
  • Step 2:The computer is either slow or sluggish
  • Step 3:The computer freezes at regular intervals

The issue can also pop up because of the incompatibility of programs while running the antivirus. The problem can also be a memory-related issue, bad driver, or virus infection. Whatever the issue is, the Norton antivirus error 8921 can be addressed with the help of some of the best troubleshooting methods at our disposal. 



There can be many applications on your computer that can cause a massive conflict. This will definitely be one of the reasons behind the Norton antivirus error 8921. Here are the steps to close programs that are not needed in the background.

  • Step 1:Ensure that your computer is turned on.
  • Step 2:Press the Ctrl + Alt + Del buttons at the same time.
  • Step 3:You will see 4 different options appear on the screen.
  • Step 4:Click the Task Manager option (The last option).
  • Step 5:Select the background applications you wish to close.
  • Step 6:Click the End task button (one program at a time).
How To Fix Norton Antivirus Error 8921?


There can be applications that can conflict with the Norton antivirus application. The best solution is to uninstall the unwanted programs or applications so that you won't encounter the error.

  • Step 1:Open the Settings window (Windows + I).
  • Step 2:Under Apps, click the Uninstall a Program button.
  • Step 3:Select the program you want to uninstall.
  • How To Fix Norton Antivirus Error 8921?
  • Do a right-click on the program and click the Uninstall button.
How To Fix Norton Antivirus Error 8921?


  • Step 1:Open the Run command (Windows + R)
  • Step 2:Type cmd in the Open field; press the Enter button.
  • Step 3:Do a right-click on the Command Prompt option and select Run as Administrator.
  • Step 4:Type sfc /scannow and press the Enter button.
  • Step 5:Wait for the computer to run the scan.
How To Fix Norton Antivirus Error 8921?

Restart the computer and you will no longer face the Norton antivirus error code 8921.



  • Step 1:Make sure that the computer is turned on.
  • Step 2:Do a right-click on the Windows icon and select Device Manager.
  • Step 3:Select a category you want to update.
  • Step 4:Once done, do a right-click and select the Update driver option from the drop-down list.
  • Step 5:Click Search automatically for updated driver software.
  • Step 6:Select Update Driver.
How To Fix Norton Antivirus Error 8921?

The update procedure will take some time to complete.


  • Step 1:Open the Norton antivirus program.
  • Step 2:In the My Norton window, click Open beside Device Security.
  • Step 3:Do a double-click on the Security option and then select LiveUpdate.
  • Step 4:When the Live Update is complete, click the OK button.
  • Step 5:You will see the message Your Norton product has the latest protection updates.
  • Step 6:Close the Norton program and restart the computer.

The Norton antivirus error 8921 will be resolved.


Follow the methods as mentioned on this page (step-by-step) so that you no longer face the Norton antivirus error 8921. If you still have your own doubts regarding the error code, click the CALL button. Our Technical Team will assist you in fixing the error.