How to sign out of Administrator account

[highstream]

Win 8 Pro x64. I had to use my Administrator account today and then returned to my named Local/Admin one. Now, when I go to reboot, Windows gives a message that "Other people are logged on to this computer. Restarting Windows might cause them to lose data." What I don't find is a way to sign out of that Admin account. Is there, short of disabling it? Seems sort of a Catch-22. Thanks,

 

[cluberti]

If you log in with an account, you can log it out via clicking the user name in the top right of the start screen and choosing log out, or via the "users" tab in task manager from the desktop.

 

[highstream]

Thanks