Error: "8504,104" appears on my Norton product

This error can be caused by another security product or due to a failed install when the product is being upgraded to a newer version.


Run the Norton Remove and Reinstall tool

    If you have Norton Family installed, uninstall it before you run the Norton Remove and Reinstall tool.

  1. 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.

  2. To open the Downloads window in your browser, press the Ctrl + J key.

  3. Double-click the NRnR icon.

  4. Read the license agreement, and click Agree.

  5. Click Advanced Options.

  6. Click Remove Only.

  7. Click Remove.

  8. Click Restart Now.

    After the computer restarts, follow the on-screen instructions to reinstall your Norton product.


Uninstall any non-Symantec security product

  1. Press the Windows + R keys to open the Run dialog box.

  2. Type in the following text, and then press Enter.


  3. In the list of currently installed programs, select the non-Symantec security product, and then click Uninstall or Remove.

  4. Follow the on-screen instructions.

  5. When the uninstall process completes, restart the computer.


Update the Video graphics driver

  1. Press the Windows + R keys, to open the Run dialog box.

  2. Type in the following text, and then press Enter.


  3. In the Device Manager window, double-click on Display adapters.

  4. Right-click on the HD graphics card, and select Properties.

  5. On the Driver tab, check whether the graphics card driver is outdated or current.

    If the driver is outdated, you need to update the download and install the latest version of the graphics card driver.

  6. Select your graphics card manufacturer:


    Symantec is not responsible for the reliability of any data, opinions, advise, or statements made on third-party sites. Symantec provides these links merely as a convenience. The inclusion of such links does not imply that Symantec endorses, recommends, or accepts any responsibility for the content of such sites.

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

Thank you!

Thank you for using Norton Support.

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DOCID: v62545568_EndUserProfile_en_us
Operating System: Windows
Last modified: 10/07/2016