So, something kept generating activity on my hard disk for games, even with nothing running. A little investigation with ProcessMonitor shows that it's usersessionhelper.exe from Armoury Crate trying to read a set of old game executables. It's always the same set of 20 or so, and they're all from a period of maybe 4 months ago. And it attempts to read them as a batch once every minute or so. Uninstalling and reinstalling doesn't stop or clear this list.

So does anyone know how to stop this behaviour or where it keeps this list of .exe's? I can't find anything in the registry, so I'm assuming a file exists, but I can't find any obvious culprit.