The service packs for windows are: Home, Business, Enterprise, and Professional. Although I'm fairly certain u use Home.
No they are actually editions.
Service-packs SPs are bundled updates to the specific version of windows.
MS releases SPs to a windows release, when they make big alterations to the very core of the OS. They are typically ~1-1.5 gigs of updates.
I do not think they have released any SP for win10 at all :)
please answer zonkmachines question -
* How was RC(?) 'unfinished'
* What did not work/ look unfinished?