Norton Startup

My Norton Internet Security 2011 18.6.0.29 is starting very slow on windows startup. In other words, after you entered the computer password, the system loads the startup programs. Well my norton starts very slow or is loading very slow (the Norton Internet Security Tasktrey does not appear with the other icons, instad it appears after the rest are loaded). Why is this happening ?

 

Off-topic : To resolve the idle status problem I found out that there are 3 ways: 1. repair Windows; 2. system restore to the moment before installing any other updates from mycrosoft; 3. a complete reinstal of the operating system. I have chosen 3 because I had other problems besides norton that had occured for some time.