Timeline of releases

Table of Windows versions [show]

Windows timeline: Bar chart [show]

The Windows family tree

Usage share and device sales

Main article: Usage share of operating systems

This box: view talk edit Market share overview According to Net Applications and StatCounter data from November 2016[51][52][53][54] Website usage statistics by Operating System on analytics.usa.gov from December 2016 [55]
Desktop OS Net Applications StatCounter analytics.usa.gov Windows XP 8.63% 4.92% 1.0% Windows Vista 1.10% 1.10% 0.7% Windows 7 47.17% 40.01% 26.9% Windows 8 1.96% 2.26% 0.6% Windows 8.1 8.01% 8.49% 3.6% Windows 10 23.72% 26.23% 16.9% All listed versions 90.59% 83.01% 49.7%	Mobile OS Net Applications StatCounter Windows RT 8.1 — 0.04% Windows Phone 7.5 0.05% 1.21% Windows Phone 8 0.22% Windows Phone 8.1 1.03% Windows 10 Mobile 0.40% All listed versions 1.70% 1.25%

According to Net Applications, that tracks use based on web use, Windows is the most-used operating system family for personal computers as of June 2016 with close to 90% usage share.^[56] When including both personal computers of all kinds, e.g. mobile devices, in July 2016, according to StatCounter, that also tracks use based on web use, Windows OSes accounted for 46.87% of usage share, compared to 36.48% for Android, 12.26% for iOS, and 4.81% for macOS.^[57][58] The below 50% usage share of Windows, also applies to developed countries, such as the US, the UK and Ireland. These numbers are easiest (monthly numbers) to find that track real use, but they may not mirror installed base or sales numbers (in recent years) of devices.
In terms of the number of devices shipped with the operating system installed, on smartphones, Windows Phone was the third-most-shipped OS (2.6%) after Android (82.8%) and iOS (13.9%) in the second quarter of 2015 according IDC.^[59] Across both PCs and mobile devices, in 2014, Windows