just run the live update... it has 2 or 3 stage.... 1st stage is about connection to Symantec server....
when its connected it will show u a BOX to check & uncheck option to download... just uncheck which u dont want to download (Registry i think??)... then in the 2n or 3rd stage it will start to downloading....
or u can try this advance user utility... but b ware dont try it u r not sure how to do it..
also see this