Is there any downsides to installing ClamXAV "other than it taking up disk space"? Also does anyone have any recommended settings to use with ClamXAV to optimize its performance? Finally if someone has already installed the application and no longer wanted it. Is there any major side effects or "app residue" left after following clam's uninstall guide on their site? "which includes running the uninstall scrupt in the installer and then deleting clamxav.app"