On trying to fire up any game in Steam, or Activate a Product on Steam, a popup will display stating "Scanning for Steam games updates.", and just sit there. It never does anything, and only offers a Cancel button (which sometimes is even disabled), which doesn't allow me to start the game from Steam.
I assume it's never going to stop, it's been going for minutes, so, is there a way around this, a way to fix this, or a way to disable this scan?