After over 20 years of using computers - including Windows 3.1 to 98 and 2000 to 7, for a total of literally THOUSANDS of hours, likely in excess of 10k, just in Windows - and having no trouble in adjusting to any of these (or six Linux desktops/WMs for that matter) I installed Windows 8 earlier. I had to ask a friend who had already tried Win8 on how to shut down (click on username -> log out -> wait -> click again -> click on shutdown -> wait more). Is this the sort of thing you mean? ;)
PS: Well, "no trouble" may be exaggerated, but I certainly managed to complete what should be trivial tasks like shutting down without assistance.