The Norton error 8504 may occur if you have another Antivirus software on your computer. When you are trying to install or update the Norton Antivirus software, the Norton error may pop up, and the process gets failed. Fix the Norton error code 8504 by following the ways given below.
Step 1: Removing other Security software
- Uninstall any other Antivirus or security programs from your computer.
- Press the Windows and R buttons together to open the Run dialog box.
- Type “appwiz.cpl” in the Search section, and press the Enter key.
- Now, you can view the list of software installed on your computer.
- Select the other Security software you want to remove and click on the Uninstall button.
- Complete the uninstallation process by following the instructions on the screen.
- Restart your computer and check if the issue is resolved.
- If the Norton error 8504 occurs again, you can continue with the next step.
Step 2: Reinstall the software using the Norton tool.
- Go to the official Norton website from your browser.
- Choose your region and navigate to the Support page.
- Select the Norton Remove and Reinstall tool and click on the Download button.
- Run the installer file of the Norton tool, and agree with the license agreement of Norton.
- Go to the Advanced options and select the Remove only button.
- Click Remove and restart your computer.
- Download the Norton Antivirus software from the official Norton website.
- Complete the installation process by following the instructions on the screen.
