I've just checked. subhrobhandari is right. Turning off any of the shields makes the System Tray icon go grey. By default, this disable option is protected by a CAPTCHA screen. However, TH, here’s something I’ve just noticed. When you turn any of the shields off, a red exclamation mark also appears over the Webroot system tray icon as a warning (which Mayahana refers to). With one exception: no red exclamation mark appears for the Realtime Shield, surely the most important one of all!? Surely it would be a good idea, when someone attempts to disable this shield, if Webroot added a red exclamation mark for this one too?? Also, perhaps when attempting to disable shields, a flashing warning telling folk of the dangers of disabling these shields might be in order as well?