So I've been using MBAM for many years now, and just started Premium about a year ago. I've never once seen a message come up saying that it requires a restart of the computer in order to finish installation of an update. I'm not a computer guru but I know that any time a program asks for a restart upon completion of an installation that usually means that it's installing a ROOT or making a change to Windows Registry files. Normally I wouldn't be worried since I didn't recently download MBAM, it's been installed since I built this PC. My worry was when the message where you can click "Later" or "Restart computer" literally keeps coming up every 1-5 minutes when I click 'Later'. When I tried actually opening MBAM from the tray icon it wouldn't open. If this is all normal, I'd give the suggestion to make this a little less intrusive.