The above image shows the small white box on the top left corner. It can't be close but will disappear when restarted. On the the taskbar it shows the icon. (a enlarge version below it) This doesn't happen all the time.

Image below shows a window that shows now. It gives me the option to exit. It show the same icon on the taskbar. I have check with Norton & Ad-Aware and shows to be clean. I did check running processes before and after and it shows only one process that ended when window was exited. It shows "wuauclt.exe". Goolged and it says "Wuauclt.exe is the AutoUpdate Client of Windows Update and is used to check for available updates (for the various versions of the MS Windows platform) from Microsoft Update. The wuauclt.exe file is included in the Task Manager’s list of active processes when it is waiting for a response or an action to be performed by the user."

Can anyone tell me if this is dangerous or just a Windows update process.