Norton using too much memory in common files
I have Norton Anti-Virus version 22.214.171.124 for BT Yahoo! Broadband, and I have a problem concerning the amount of hard drive space it is taking up. I have a PC with 60GB space and yet despite constant disk cleans and maintainence, I have noticed that Norton Anti-Virus takes up a massive 30GB of the space: pretty much half.
The exact locations of these massive folders are C/Program Files/Common Files/Symantec Shared/VirusDefs, and the files are in in folders marked "temp" or just random numbers.
I was wondering that since these files are taking up so much space, are some safe to delete (without compromising the program) and if so, how do I go about this?
Thank you. =]