Other products

Error: "8504,101"

This error can occur due to a failed install when the product is being upgraded to a newer version or by another security product already installed on the computer. To resolve this error, reinstall Norton.

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.

  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 the Norton product.

    If the problem persists, go to Step 2.

STEP 2

Uninstall any non-Symantec security product

    You can also read the program documentation or contact the program manufacturer for instructions to remove a non-Symantec security product from your computer.

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

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

    appwiz.cpl

  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 completes, restart the computer.

Thank you!

Thank you for using Norton Support.

< Back

The solution made it easy for me to handle my issue.

Yes No

Help us improve this solution.

Thank you for helping to improve this experience.

What would you like to do now?

Browse for solutions, search the Norton Community, or Contact Us.

DOCID: v62545610_EndUserProfile_en_us
Operating System: Windows
Last modified: 03/05/2019