On both of my computers, I eventually have the same issue, and it leads me to uninstall WSA. Most of the time, the padlock on the tray icon is there as it should be (on the browsers I have listed as "protected). But periodically, it disappears. If I re-start WSA, it re-appears. Even though I may still be protected, there is something about me psychologically that doesn't like that. Currently, I don't have it installed on either computer. Any idea what might cause this?