ccsvchst.exe causing slowdown on startup

Hello;

I have Norton Internet Security 2011 installed on my computer, recently upgraded automatically from NIS 2010 (ie I installed NIS 2011 over the 2010 version as recommended by members in this forum). I ran a performance check on my computer (Windows 7 Home edition) and received the following message:

 

These startup programs are causing windows to start slowly

Name           Symantec Service Framework

Filename      ccsvchst.exe

Publisher     Symantec Corposation

 

This entry appears twice.

 

It is true that my computer takes an extremely long time to start up (sometimes up to several minutes), so how can I configure NIS 2011 so that it does not cause such a slowdown?

 

Thanks in advance to those who offer their help.

Kind regards,

Tonia