Boot.Tidserv detection

Hello, I'm a new member to this forum, and actually I signed up to get this problem solved.

 

Norton keeps showing the Boot.Tidserv detection even though it says to have been removed everytime my OS starts up.

 

Is there a way to remove this virus once and for all?

 

 

 

I'm using a HP Pavilion dv5 Notebook PC

 

the OS I'm using is Windows Vista Home premium,

 

and the Norton system is a trial version of Norton Protection Center

 

and 60day trial Norton Internet Security that came along with the installation.