Symptoms of Error 8504 5
"Error 8504 5" appears and crashes the active program window.
Your PC frequently crashes with Error 8504 5 when running the same program.
“Norton 360 Error 8504 5” is displayed.
Windows runs sluggishly and responds slowly to mouse or keyboard input.
Your computer periodically “freezes” for a few seconds at a time.
These 8504 5 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 5 error occurs is a critical piece of information in troubleshooting the problem.
Causes of Error 8504 5
Corrupt download or incomplete installation of Norton 360 software.
Corruption in Windows registry from a recent Norton 360-related software change (install or uninstall).
Virus or malware infection that has corrupted Windows system files or Norton 360-related program files.
Another program maliciously or mistakenly deleted Norton 360-related files.
Runtime Errors such as “Error 8504 5” 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.

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