Some of the most popular Microsoft operating systems include Windows 7, Windows XP, Windows 8.1 and Windows 8. In its history, Microsoft has produced other operating systems, such as Windows 1.0, Windows 3.x, Windows 98 and Windows Vista.
Windows 7 remains the most popular operating system from Microsoft. This superiority is also evident when you consider all the operating systems that people use on their desktops. As of March 2015, Windows 7 had 55.99 percent of the market share. The operating system has taken the position that Windows XP held just a few years ago, according to a recent report by DigitalTrends.com.