A Wikipédia também explica as versões N, procure em "Edições de finalidade especial" na Wiki do Windows 7 .
N and KN editions
The features in the N and KN Editions are the same as their equivalent full versions, but do not include Windows Media Player or other Windows Media-related technologies, such as Windows Media Center and Windows DVD Maker. The cost of the N and KN Editions are the same as the full versions, as the Media Feature Pack for Windows 7 N or Windows 7 KN can be downloaded without charge from Microsoft.
N versões foram criadas devido a uma multa / liquidação com o União Europeia