Most annoying Windows 8 trait: Double keyboards
Windows 8 is an OS that covers a lot of ground in the mobile space. It is typical Windows when used on desktop systems, yet it handles touch operation that is appearing on laptops, tablets, and hybrids. One such hybrid that I've been using since picking one up at a good price is the HP Envy x2.
The more I use the Envy x2, the more impressed I am with its versatility. I can use it as a full laptop with the additional benefit of a touchscreen, or I can use it as a touch tablet. It handles both duties equally well while delivering an impressive 14+ hours of battery life.
As good as it is, there is one trait built into Windows 8 that drives me batty while using the Envy x2. Microsoft puts a software keyboard in Windows 8 to handle those times when using a touch tablet. The keyboard pops up on the screen, taking up quite a lot of it, to facilitate text entry when no physical keyboard is present.