Possible Duplicate:
On Windows 7, how to Shut Down the computer without the Update?
I have my Windows 7 Pro set up to "download patches, but let me choose when to install them". However, on several occasions, when I have shut down the O/S, Windows Update has proceeded with a lengthy patch application even though I issued no permission to do so.
This is a bit scary to me... in particular, it seems I cannot trust the Windows Update settings. Is this official policy somewhere at Microsoft, or am I witnessing a bug? What can be done about it?