Disk size increasing

Many phenomena’s may cause your hard drive to increase with no reason.
If you use Symantec Norton 7.5, one of the reasons may be the antivirus logs places under:
C:\Documents and Settings\All Users\Application Data\Symantec\Symantec Antivirus Corporate Edition\7.5\Logs
Two ways to avoid it :
1. Uninstall and install Symantec software.
2. Manually (or with script) – delete the logs