One more note from me about SP3.
It is a hybrid between "mainstream Windows laptop" and a tablet like ipad. The user interface takes a little to get used to. Basically Microsoft tried to have the best of both worlds. So they (Windows 8) provide the look and feel of the tablet stuff (swipe, finger gesture/clicking). Then they provide a "portal" to access the classical Windows (7 and earlier versions) when you access your "desktop". The user interactions are different in these 2 worlds. For example, in classical Windows, you click on the upper right corner on the "X" mark to exit the application. In the tablet world, there is no "exit". The app just runs. There is no X mark. I haven't figured out how to dismiss the app. There is no "right click" to "close the window" to dismiss them. You see something odd. You can start the Microsoft Internet Explorer from the Window's context. You get one incident of IE. Then you can start Microsoft Internet Explorer from the tablet's "Start Menu" context. You get another incident of IE. They are 2 different versions. They have their own history lists and set of tabs (currently opened pages) and so on. At times they are very confusing. The conventional Windows app (such as Microsoft Word, Powerpoint, etc.), you access through the "desktop" portal. The modern tablet apps (such weather, news, shopping, etc.), you access through the new Start Menu. The 2 environments just co-exist. Took me a while to get used to.