How to Fix an Error Code 8504 104 in Norton Antivirus?

Norton antivirus offers complete security features; these features are capable in maintaining protection on computers, laptops, and other devices. Despite its trustworthy features, users come across an error code 8504, 104 and this error crops up due to a number of reasons. Therefore, it’s important to fix each possible reason to put an off on the reappearing of this code.

Runtime Errors such as “Error 8504, 104” can be caused by a variety of factors, so it is important that you troubleshoot each of the possible causes to prevent it from recurring.

Below is a list of troubleshooting steps to resolve your Error 8504, 104 problems. These troubleshooting steps get progressively more difficult and time consuming, so we strongly recommend attempting them in ascending order to avoid unnecessary time and effort.

Steps to fix Norton error code 8504 104:

  1. Go to repair registry entries linked with error code 8504 104.
  2. Go to “Start” menu and navigate to “Search Programs and Files” options, below “All Programs” type “regedit” and press “Enter” button. From its registry editor, select a key associated to this error 8504, 104 like Norton 360. If you want to backup this key, choose “Import” from file menu and you can backup key in a folder.
  3. Now perform a complete scan on your computer.
  4. Expel All The Temporary Files, Junk Files with Help of Tool Disk cleanup.
  5. Now go to the “Start” button and navigate to run window, type “cleanmgr” and press “Enter” now. A new disk cleanup wizard dialog box will appear, now you can select boxes you wish to clean and then click “Okay” button.
  6. You need to upgrade all the drivers on your device
  7. A user can use “System Restore” tool in MS Windows OS to undo the recent changes you made on your computer.
  8. Uninstall and re-install the software linked with this code 8504, 104.
  9. One can use Windows system file checker.
  10. Next, go to “Start” menu, navigate to “Search Programs and Files” option, just below All Programs enter “sfc/scanow” in its Run dialog box. Now users just need to follow on-screen prompts to fix this issue.

Now install all latest updates by running “Windows Update”.

STEP 1. Run the Norton Remove and Reinstall tool.

  • If you have Norton Family installed, uninstall it before you run the Norton Remove and Reinstall tool.
  • Download the Norton Remove and Reinstall tool.
  • Save the file to the Windows desktop. On some browsers, the file is automatically saved to its default location.
  • To open the Downloads window in your browser, press the Ctrl + J key
  • Double-click the NRnR icon.
  • Read the license agreement, and click Agree.
  • Click Advanced Options.
  • Click Remove Only.
  • Click Remove.
  • Click Restart Now.
  • After the computer restarts, follow the on-screen instructions to reinstall Norton.

STEP 2. Uninstall any non-Symantec security product.

  • Press the Windows + R keys to open the Run dialog box.
  • Type in the following text, and then press Enter.
  • In the list of currently installed programs, select the non-Symantec security product, and then click Uninstall or Remove.
  • Follow the on-screen instructions.
  • When the uninstall process completes, restart the computer.

STEP 3. Update the Video graphics driver.

  • Press the Windows + R keys, to open the Run dialog box.
  • Type in the following text, and then press Enter.
  • In the Device Manager window, double-click on Display adapters.
  • Right-click on the HD graphics card, and select Properties.
  • On the Driver tab, check whether the graphics card driver is outdated or current.
  • If the driver is outdated, you need to update the download and install the latest version of the graphics card driver.

Restart the computer and check if the issue has been resolved.

Error: “8504,104” may appear for at least two reasons:

Failed Norton install that has happened during the installation or an upgrade process to a newer version.
Another antivirus or security product already being installed onto a computer.

To fix the problem caused by the failed Norton installation, use the Norton Removal Tool.

These 8504, 104 error messages can appear during program installation, while a Symantec-related software program (eg. Norton 360) is running, during Windows startup or shutdown, or even during the installation of the Windows operating system. Keeping track of when and where your 8504, 104 error occurs is a critical piece of information in troubleshooting the problem.