I'm not at home right now so I can't check the Event Viewer but last night I rebooted for the first time in ages and it took over two minutes to shutdown when it used to take a few seconds. And the same with restarting.

When I attempt to restart/shutdown the computer starts doing it's thing for a few seconds then stops and does nothing for a minute or two then all of a sudden everything closes and the computer reboots/shuts down.

Any one experience this? Know of a fix if so?