Microsoft installing updates without notification or consent
Microsoft has a back door built into Windows Update which allows them to install updates on your computer without either notifying you when they do so or asking for your permission to do so. That's not the worst part, though. The worst part is that they can do this even if you've disabled Windows Update completely via the Control Panel. This means, in a nutshell, that Microsoft can force any update down your throat that they damn well please to, and you might not even be aware of it until it's already been done.
Questionable business practices, anyone?
Here's the link.