There have been many recent cases on Norton 360 products unable to work properly after installing on Lenovo laptop with Window 7 OS (Operating System).
As soon as you reinstall Norton 360, the applicaton is fine. Once you download all the current updates and the application is still fine.
However once the computer is reboot, the Norton application can no longer be accessible.
You may receive the below error codes:
Error: 8504, 101
Error: 8504, 104
Error: 8506, 421
Resolution provided by Norton support for Error Code 8504, 101:
1. Use Download and run Norton Power Eraser
2. Download and run the Norton Removal Tool
3. Reinstall Norton 360 product
Solution link: https://support.norton.com/sp/en/uk/home/current/solutions/v62545610_EndUserProfile_en_us?product=home&pvid=f-home&version=1
Resolution provided by Norton support for Error Code 8504, 104:
1. Use Download and run Norton Power Eraser
2. Uninstall any non-Symantec security product
3. Download and run the Norton Removal Tool
Solution link: https://support.norton.com/sp/en/sg/home/current/solutions/v62545568_EndUserProfile_en_us
Resolution provided by Norton support for Error Code 8506, 421:
1. Download and run the Norton Removal Tool
2. Use Download and run Norton Power Eraser
3. Reinstall Norton 360 product
Solution link: https://support.norton.com/sp/en/sg/home/current/solutions/v80281719_EndUserProfile_en_us
Addition Resolution to use Malware Bytes free edition:
http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html?part=dl-10804572&subj=dl&tag=button
You might have tried to use the above solutions many times but the problem still persists upon the computer restarting.
After several testing, it has been proven that some Lenovo software are conflicting to the Norton 360 software to work properly.
Solutions on Norton 360 product not working properly on Lenovo laptop:
1. Uninstalling 'Rapid Boot' software in Lenovo laptop.
2. Uninstall 'Instant Reset' software in Lenovo latop.
After uninstalling the above mentioned software, the Norton 360 product is working back to normal.
If you are using Lenovo laptop with Norton 360 product, this two possible solutions might help you to solve the problem.