norton anti virus and memory useage

 Ive got a hp pc with windows vista premium. Installed norton antivirus 2009.

I dl 30 mb of updates from norton live update

And the disk space on the pc dropped 2 gb.

 

 

I ve deleted temp internet files on a reg basis. That didnt help.

 

If theres a temp norton cache, i havent found it.

 appreciate any advice

 

Phillip