Windows is still by far the most widely used desktop OS in the world but things are decidedly trending downward. The most recent numbers from NPD showed that while “U.S. consumer retail PC sales grew almost 3% during the 10 week Back-to-School period (week of July 4th through Labor Day week),” Windows device sales actually fell by 3% over the same period. Instead, NDP found that all growth in PC sales came from Macs and Chromebooks. Microsoft’s struggles in the mobile market are even worse — while iOS and Android dominate the smartphone market, Microsoft’s own Windows Phone has been a bust so far and has actually seen both its market share and total shipments decline over the last year.
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