Event Viewer - Power Troubleshooter event question

[cocomintcookies]

I wanted to see who was viewing my computer and went to event viewer, under System > filter current log > power troubleshooter -- I found that the wake source for the system resuming from sleep was a device usb root hub, what does this mean?

 

[Jacee]

It has to do with your mouse or keyboard (power settings), see this: http://www.sevenforums.com/tutorials/179257-wake-source-read-event-viewer-log.html