Okay, so under OS X Lion if a system update was available that required a restart, I could instead just choose "Not Now" and the update would install when I shut my computer down. However, with this stupid transition to the Mac App Store for OS updates I can't seem to do this anymore, as the Mac App Store doesn't seem to want to download updates ahead of time (so they're not there for installation when I shut-down). Is there a way to do this under Mountain Lion? I usually shut my computer down every night anyway so I don't want to have to restart specially only to then immediately shut-down. Even more annoying since I have FileVault 2 enabled, and since most devices simply don't work on the FileVault login screen I can't just shut-down from there, and powering off means you get to enjoy the slow recovery partition startup next time you switch the computer on. So yeah, a combination of minor issues makes this into a huge grievance any time I need to restart to install an update. I don't understand why Apple don't just give us a "Shut Down" button alongside the "Restart" one; it would be so much simpler, as even the old method of choosing shut down normally and just hoping the updates will install was hardly intuitive.