When I shut down my computer, a Task Host Windows program shows up briefly and then it shuts down. I don't know if this is a big deal but it's been happening a lot lately when I shut down. It says that Task Host Windows is doing something but I can't see it since it's only briefly. This is similar to my problem, http://social.technet.microsoft.com/Forums/windows/en-US/085b13da-6161-4a63-9f78-8dd437c3b37e/waiting-for-task-host-windows-in-windows-7-when-shutting-down
except that mine actually shuts down while theirs is frozen. There's a "hotfix" for this and I'm not sure if I should try it or not.