As a former XP user who skipped Vista, the UAC functionality is something new that I’m learning to deal with.
I’m sure a lot of people just turn it off, but I’m trying to find ways to work within the security setup. I’m happy to click on a UAC prompt when I’m installing a program, that’s not something I do daily, but I don’t want to click on a prompt every time I launch Xfire or Steam. Xfire requires it be run in admin mode. Steam doesn’t have to be run that way, but Fallen Earth (which I bought through Steam) does. If you run a game in Steam that requires it be in admin mode, but Steam is not, then you get this very unhelpful message.
Of course the game is actually available but you either have to run the program directly from the SteamApps folder in admin mode or you have to launch Steam in admin mode. Either way you’ll get a UAC prompt. Every time.