It's been happening since FFXIV's last big patch, which also were the only changes made. Windows Update seemed to have mysteriously disappeared from my computer so it sure didn't perform any updates, but I got it back and updated everything and also ran virus and spyware scans. I haven't made any hardware changes for two or three years. It's the only game that experiences the hang, and it's happened with nothing else running. I'd tab over to the desktop cuz there was nothing else available, and couldn't get back to the game.