article_snippet: Terry Myerson, Microsoft's Windows chief said: 'There's about one and a half billion people using Windows today. '
article_snippet: Across desktop PCs as a whole, only 13.4 per cent currently run Windows 8 or Windows 8.1, according to research firm NetMarketshare.
article_snippet: By contrast, Microsoft's 'One Windows' says 51.2 per cent are powered by Windows 7 and 23.9 per cent by Windows XP, a version that is no longer supported by Microsoft.