Is there any special SKU(Special Kit Unit) version of Windows 7 that exists? (Windows 7 N, Windows 7 K, Windows 7 KN, Windows 7 E)
Yes, there is Windows 7 N, Windows 7 K, Windows 7 KN and Windows 7 E, where each editions of Windows 7 will also have in these flavors other than standard version.
Windows 7 N: Windows 7 N is meant for European market, and includes the same functionality as Windows 7, except that it does not include Windows Media Player and related technologies such as Windows Movie Maker.
#简言之，Win7 N是为欧洲的市场特别定制，除了不包含Windows Media Player及相关技术 其他功能与Win7 的一样。
Windows 7 K: Windows 7 K is meant for Korean market, and includes the same functionality as ordinary Windows 7, except that it includes links to a Media Player Center Web site and a Messenger Center Web site.
#简言之，Win7 K是为韩国的市场特别定制，与Win7有一样的功能，K这个版本还包含Media Player Center & Messerger Center的网站链接。
Windows 7 KN: Windows 7 KN is meant for Korean market, and includes the same functionality as Windows 7 K, except that it does not include Windows Media Player and related technologies such as Windows Movie Maker, links to download Windows Live Messenger, or links to a Media Player Center Web Site and a Messenger Center Web site.
#简言之，把K和N的特点综合一下就是这个Win7 KN
Windows 7 E: Windows 7 E is meant for European Commission countries, including UK, and includes the same functionality as ordinary standard flavor of Windows 7, except that it does not include Internet Explorer 8 (IE8).
#简言之，Win7 E是为欧盟国家包括英国特别定制，与Win7有一样的功能，但不包含IE8
