Potvrzeno: Windows 8.1 zdarma pro uživatele Win8 http://blogs.windows.com/windows/b/bloggingwindows /archive/2013/05/14/windows-keeps-getting-better.a spx Zdroj: http://www.zive.cz/bleskovky/potvrzeno-majitele-windows-8-dostanou-zdarma-upgrade-na-windows-81/sc-4-a-168863/default.aspx
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