Fix Norton Autofix Error Code 8506, 421

Your computer’s antivirus solution plays a major role in the upkeep of the system’s overall functioning. Yet, this can only happen as and when the software is properly installed and activated.

At times, users might face problems while using the software and may be faced by the Norton error code 8506, 421. Mostly, this error occurs at the time of opening the software or, sometimes, even while installing the same.

The Norton antivirus error 8506 and 421 messages may be displayed either when the computer starts up or when it shuts down. In order to ensure proper troubleshooting of the issue (especially if you are calling the customer support centre), the user must closely follow the timings of the error messages.

Identifying the Norton Autofix Error 8506

In order to identify the Norton error 8506 and 421, you have to keep an eye out for following issues with your computer and its operating system. Usually, during the occurrence of the error 8506, 421, Norton will display the error message right away. However, at times the message may not be properly displayed.

Below are some of the ways in which the problem may be expressed.

Possible Reasons behind Norton Error Code 8506, 421

Steps for Resolving Norton Error Code 8506, 421

It so happens, that the best solution for the Norton error 8506 and 421 is to re-install the antivirus program. However, re-installing alone may not be enough.

In order to solve this problem, the user has to follow the steps provided below, while keeping their order intact.

Step I – Edit and repair all the corrupt entries in the registry data. However, you should do this only if you are confident enough regarding the techniques. Improper editing of the registry data can be detrimental to your computer’s performance.

Step II – Type COMMAND in your Start Menu’s search box and press Ctrl+Shift+Enter. When the window opens, type the command – ‘cleanmgr’ – and press ENTER. This opens the dialogue box for Disk Cleanup. Perform a thorough cleaning of the system by selecting all the checkboxes in this window.

Step III – On the successful completion of the clean-up protocol, go ahead and download Norton’s Remove & Re-install tool.

Step IV – The downloaded file can be found on the ‘Downloads’ page (Ctrl+J) of your web-browser or in your usual download location. When you’ve found it, open the NRnR application by clicking on its icon.

Step V – After agreeing to the licence agreement, go to the section named ‘Advanced Options’. From this section, click on the ‘Remove Only’ option. Then, click on the ‘Remove & Restart’ button.

Step VI – The completion of the procedure will force the computer to automatically restart. After that, manually install the Norton antivirus again, from the scratch. In case the problem still exists, you’d have to contact Norton Antivirus Support on the numbers Mention all the details of the issue, as well as, those of your own attempt to resolve the same.

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