Windows 10 is going to be different as are all new operation systems, but nothing on the scale of Windows 8. There will be a UI learning curve, but if you take in the new features in small bites, it will all fall into place long before the OS is released. This installment we are going to play Finding Windows Update and Where the hell is the Control Panel? :D
Microsoft has started the push to finalize the Windows 10 interface. Get used to it. By the time Windows 10 is ready to publicly release, Control Panel should be retired completely.
Windows Update has now been removed completely from the old-style Control Panel and found a new home inside the new, streamlined Windows Settings applet. The "new" update needs work. As is, there is no granular control of the updates i.e. there's no way to refuse updates on an individual basis :(