How to Troubleshoot Norton Antivirus Error 451?

by Emily Brown 1-888-827-9060

Norton, the well-known online security solution provider offers a great range of products for both home and business PCs. It offers endpoint protection against viruses that tend to harm your computer system and steal your confidential information. Once installed, the antivirus runs in the background scanning your software and applications. The antivirus also ensures safe browsing; means you will be see a warning or a message while visiting a website that is infected with the viruses or have malicious applications. While using Norton antivirus product, you may encounter a number of errors and one of the common error is 451. This error can occur in Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows ME and Windows 2000. Before we tell you the reason why this error occurs, let’s have a look over the symptoms of error 451:

"Error 451" appears and crashes the active program window
Your PC frequently crashes with Error 451 when running the same program
“Norton Antivirus Email Error 451” is displayed
Windows runs sluggishly and responds slowly to mouse or keyboard input
Your computer periodically “freezes” for a few seconds at a time

Now, have a look over the reasons that cause this error to happen:

Corrupt downloading of your Norton antivirus
Incomplete installation of your Norton antivirus
Virus or malware infection in Windows system files
Virus infection in the program files associated with the Norton antivirus
A program has mistakenly deleted or removed a Norton antivirus file

The error message may appear during program installation. To troubleshoot this issue, following the below mentioned steps:

Repair all the registry entries associated with your Norton antivirus
Begin an instant scan of your entire computer system
Remove all the temporary files, junk files and folders using disk cleanup
Make sure your Pc drivers are updated to the latest version
Use Windows System Restore to “undo” recent system changes
Uninstall and then reinstall the Norton antivirus program linked to this particular error
Run Windows System File Checker (sfc /scannow)
Make sure that your operating system is updated to the latest version
Now, perform a clean installation of Windows

Hope the information was useful!

Source: http://setup-activate-now.com/how-to-troubleshoot-norton-antivirus-error-451/