Endpoint Protection 11 takes up a lot of disk space: can I delete files?

Hello,

 

I have  Symantec Endpoint Protection 11 client on my WinXP PC. For historical reasons, the C: partiion is just 34GB, so it's a problem that the Symantec client software is taking 10GB and growing.

 

Most of the large files are in

 

        C:\Documents and Settings\All Users\Application Data\Symantec\Symantec AntiVirus Corporate Edition\7.5

 

Can I safely delete anything in there? File names are "000377CC", "0002EAEF", etc.

 

What about the contents of the "Quarantine" sub-folder in there? That's 1GB.

 

Thanks,

Dan