HATE: Distributed Controls
This one is already driving us crazy, and it will have IT admins and end users reaching for their blood-pressure meds. In Windows 8, Microsoft has distributed the wealth of its system controls and configuration tools to no fewer than three places, four if you are also counting those now accessible in the Windows Explorer ribbon. Seen here is the PC Settings Charm bar, which thankfully contains a link to the traditional Control Panel. The Control Panel is still where you find most system settings, but some are available only in the PC Settings panel. These include controls for app-notification and search settings and for certain keyboard preferences. You'll also have to get used to having "Drive Tools" baked into the Explorer ribbon.