How to Fix Norton 360 Error Code 8504?

This error appears when you have another security program installed with Norton and you are trying to update it to the newer version of Norton. During upgrade of Norton the installation will not take place and Norton 360 Error 8504 appears. This error code occurs when Norton files are infected by other software’s or the registry is corrupted.

If you are not able to turn of firewall of Norton internet security try 7 simple steps to fix the issues you face with Norton internet security. Read blog How to Turn Off Firewall on Norton Internet Security. Follow steps below to fix Norton 360 has encountered an error 8504.

Fix Norton 360 Error Code 8504

Steps to Fix Norton Antivirus Error Code 8504:


Step1: Download Norton removal tool, and start installing NRN,

Step2: Read license agreement and click on agree. Now, click on advanced options and select remove only option.

Step3: Now hit remove now and after removal restart the computer.


Step1: Press windows and R simultaneously.

Step2: Now type appwiz.cpl and hit enter.

Step3: From list of installed program search for security products other than Norton and uninstall them. Follow on screen commands and restart after complete removal of process.


Step1: Open command prompt in admin mode now type “devmgmt.msc” and hit enter

Step2: In device manager select one by one driver like right click on display adapters and search for latest updates.

Step3: After update restart the computer.

Call Norton 360 Support Number 1-800-431-454 to Fix Norton Error 8504

If after executing all the steps given above Norton antivirus error code 8504 is not fixed you can call an expert. To get connected with Norton 360 professionals you can call Norton 360 contact number Australia and get online help to fix Norton issues. Our certified team of tech professionals is working to fix issues in Norton antivirus Round the clock.

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