New
#21
The differences between OEM and Retail (as I see it). OEM is tied to the machine it was originally installed on, and you can not do an in place upgrade from older versions of Windows, only a clean/fresh install.
Retail can be used on multiple machines, as long as it is only used on one machine at a time. It also comes with support, which may be of dubious value, what with Seven Forums being available
Licensing for Hobbyists
A Guy