I am trying to shut off msmsgs.exe. When I go to Tools, Options,Preferences to unclick the 2 boxes to load Messenger on start up. When I click on OK RegDefender pops up. To allow or Block, [ Delete msmsgs.exe ] At first I blocked the Delete. That didn't work. So I tried Allow. Then RD popped up again wanting to know what I wanted to do with [ctfmon.exe] . I blocked it. Messenger still pops up on start. How are you supposed to do this??