How To Windows Windows Version Numbers A List of Windows Version Numbers & Major Windows Builds Share Pin Email Print © Microsoft Windows Installing & Upgrading Basics Guides & Tutorials Tips & Tricks Key Concepts by Tim Fisher Updated March 07, 2018 Each Microsoft Windows operating system has a familiar name, like Windows 10 or Windows Vista, but behind each common name is an actual Windows version number1.Windows Version NumbersBelow is a list of major Windows versions and their associated version numbers:Operating SystemVersion DetailsVersion NumberWindows 10Windows 10 (1709)10.0.16299Windows 10 (1703)10.0.15063Windows 10 (1607)10.0.14393Windows 10 (1511)10.0.10586Windows 1010.0.10240Windows 8Windows 8.1 (Update 1)6.3.9600Windows 8.16.3.9200Windows 86.2.9200Windows 7Windows 7 SP16.1.7601Windows 76.1.7600Windows VistaWindows Vista SP26.0.6002Windows Vista SP16.0.6001Windows Vista6.0.6000Windows XPWindows XP25.1.26003 [1] More specific than a version number, at least in Windows, is a build number, often indicating exactly what major update or service pack has been applied to that Windows version. This is the last number shown in the version number column, like 7600 for Windows 7. Some sources note the build number in parenthesis, like 6.1 (7600).[2] Windows XP Professional 64-bit had its own version number of 5.2. As far as we know, that's the only time Microsoft has designated a special version number for a specific edition and architecture-type of a Windows operating system.[3] Service pack updates to Windows XP did update the build number, but in a very minor and long-winded way. For example, Windows XP with SP3 and other small updates is listed as having a version number of 5.1 (Build 2600.xpsp_sp3_qfe.130704-0421 : Service Pack 3). Was this page helpful? Thanks for letting us know! Share Pin Email Tell us why! Other Not enough details Hard to understand Submit Continue Reading