All windows build numbers

Windows Version Numbers

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Name / Description Version Build Number Public Release RTM Release
Windows NT 3.1 3.10 511 1993-07-27
Windows NT 3.5 3.50 807 1994-09-21
Windows NT 3.1, Service Pack 3 3.10 528 1994-11
Windows NT 3.51 3.51 1057 1995-05-30
Windows 95 4.00 950 1995-08-24
Windows 95 OEM Service Release 1 4.00 950 A 1996-02-14
Windows 95 OEM Service Release 2 4.00 950 B 1996-08-24
Windows NT 4.0 4.0 1381 1996-08-24 1996-07-31
Windows 95 OEM Service Release 2.1 4.00 950 B 1997-08-27
Windows 95 OEM Service Release 2.5 4.00 950 C 1997-11-26
Windows 98 4.10 1998 1998-05-15
Windows 98 Second Edition (SE) 4.10 2222 1999-05-05
Windows 2000 5.0 2195 2000-02-17 1999-12-15
Windows Me 4.90 3000 2000-09-14 2000-06-19
Windows XP 5.1 2600 2001-10-25 2001-08-24
Windows XP, Service Pack 1 5.1 2600.1105-1106 2002-09-09
Windows Server 2003 5.2 3790 2003-04-24
Windows XP, Service Pack 2 5.1 2600.2180 2004-08-25
Windows Server 2003, Service Pack 1 5.2 3790.1180 2005-03-30
Windows Server 2003 R2 5.2 3790 2005-12-06 2005-12-06
Windows Vista 6.0 6000 2007-01-30 2006-11-08
Windows Server 2003, Service Pack 2 5.2 3790 2007-03-13
Windows Home Server 5.2 4500 2007-11-04 2007-07-16
Windows Vista, Service Pack 1 6.0 6001 2008-02-04
Windows Server 2008 6.0 6001 2008-02-27 2008-02-04
Windows XP, Service Pack 3 5.1 2600 2008-04-21
Windows Vista, Service Pack 2 6.0 6002 2009-05-26 2009-04-28
Windows Server 2008, Service Pack 2 6.0 6002 2009-05-26
Windows 7 6.1 7600 2009-10-22 2009-07-22
Windows Server 2008 R2 6.1 7600 2009-10-22 2009-07-22
Windows 7, Service Pack 1 6.1 7601 2011-02-22
Windows Server 2008 R2, Service Pack 1 6.1 7601 2011-02-22 2011-02-09
Windows Home Server 2011 6.1 8400 2011-04-06 2011-04-06
Windows Server 2012 6.2 9200 2012-09-04 2012-08-01
Windows 8 6.2 9200 2012-10-26 2012-08-01
Windows 8.1 6.3 9600 2013-08-27 2013-10-17
Windows Server 2012 R2 6.3 9600 2013-10-18 2013-08-27
Windows 10, Version 1507 10.0 10240 2015-07-29 2015-07-15
Windows 10, Version 1511 10.0 10586 2015-11-10
Windows 10, Version 1607 10.0 14393 2016-08-02
Windows Server 2016, Version 1607 10.0 14393 2016-08-02
Windows 10, Version 1703 10.0 15063 2017-04-05
Windows 10, Version 1709 10.0 16299 2017-10-17
Windows Server 2016, Version 1709 10.0 16299 2017-10-17
Windows 10, Version 1803 10.0 17134 2018-04-30
Windows Server 2019, Version 1809 10.0 17763 2018-10-02
Windows 10, Version 1809 10.0 17763 2018-11-13
Windows Server 2008, Service Pack 2, Rollup KB4489887 6.0 6003 2019-03-19
Windows 10, Version 1903 10.0 18362 2019-05-21
Windows 10, Version 1909 10.0 18363 2019-11-12
Windows 10, Version 2004 10.0 19041 2020-05-27
Windows 10, Version 20H2 10.0 19042 2020-10-20
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Windows Version Numbers

A list of Windows version numbers & major Windows builds

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 number 1 .

You can determine your Windows version a number of ways if you want to check which build number you’re currently running.

Windows Version Numbers

Below is a list of major Windows versions and their associated version numbers:

Reference Table for Windows Version Numbers
Operating System Version Details Version Number
Windows 10 Windows 10 (20H2) 10.0.19042
Windows 10 (2004) 10.0.19041
Windows 10 (1909) 10.0.18363
Windows 10 (1903) 10.0.18362
Windows 10 (1809) 10.0.17763
Windows 10 (1803) 10.0.17134
Windows 10 (1709) 10.0.16299
Windows 10 (1703) 10.0.15063
Windows 10 (1607) 10.0.14393
Windows 10 (1511) 10.0.10586
Windows 10 10.0.10240
Windows 8 Windows 8.1 (Update 1) 6.3.9600
Windows 8.1 6.3.9200
Windows 8 6.2.9200
Windows 7 Windows 7 SP1 6.1.7601
Windows 7 6.1.7600
Windows Vista Windows Vista SP2 6.0.6002
Windows Vista SP1 6.0.6001
Windows Vista 6.0.6000
Windows XP Windows XP 2 5.1.2600 3

[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).

How to Update Windows

To update Windows to the newest build number, use Windows Update. Using the built-in Windows Update utility is the easiest way to check for and install Windows updates.

If your version of Windows isn’t currently set up to install updates automatically, you can change the Windows Update settings so that new updates are downloaded and applied automatically. This is the simplest way to keep Windows updated to the latest version number.

Major Changes in Windows 10

Microsoft introduced several changes to the Windows operating system with the release of Windows 10. These are some of the biggest differences between Windows 10 and Windows 8 (and older versions of Windows):

How to Find Your Windows 10 Build Number, Version, Edition and Bitness

The Build Number, Version, “Bit”ness (32-bit or 64-bit) of your Windows installation can be determined using many ways, and here are some of the methods listed. Screenshots are from a Windows 10 PC, but most of the information applies to all versions of Windows.

Find Windows 10 Build Number, Version, Edition and Bitness

System Settings App

In Windows 10, use the System Settings app to find the OS information. Click Start, type About your PC. Click About your PC from the results.

System – Control Panel

Press Winkey + Pause-break keys. This opens the Control Panel → All Control Panel Items → System. Alternately, you can run sysdm.cpl directly.

Note: Since the Windows 10 v20H2 update, the following interface is hidden. Pressing the Winkey + Pause-break would take you to the modern Settings page instead. Microsoft is gradually porting items from the classic Control Panel to the Settings user interface. However, you can access the classic System panel by running this shell command from the Run dialog.

Using the DirectX Diagnostic Tool

Using WMIC (WMI command-line tool)

Open a Command Prompt window and type:

The WMIC command-line (mentioning “OSArchitecture”) tells you the bitness of your Windows. You can get as many details as you need using WMIC OS Get command, such as:

Note: Here is a complete list of fields you can retrieve using WMIC OS Get (which uses the Win32_OperatingSystem class)

In addition to all of the above methods, you can check the Help → About page any Windows desktop application like Notepad, Wordpad, Internet Explorer or others, for the Windows version & build information.

Note: The following methods don’t tell you whether you have an x64 version of Windows installed or not. They only show the OS installed and the System or Processor type (x86 or x64). System Type x64 means the processor is 64-bit. But that does not necessarily mean you have Windows x64. It could be Windows x86 OS running on an x64 CPU based machine.

System Information Utility

The System Information utility (MSInfo32.exe) has the details you need.

Scroll down and check the Hardware Abstraction Layer field. It also shows the full build number, including the minor build number.

About Windows (WinVer)

Alternately, in Command Prompt, run the ver.exe command to know the OS build number.

Watermark on the Desktop

If you’ve added the PaintDesktopVersion or the DisplayVersion registry values as in article Display Build Info, Version and WinDir Path in the Desktop, you’ll see the Windows Edition, Build Information and WinDir path in the desktop shown as a watermark. For evaluation versions of Windows, the watermark displays by default.

Using SystemInfo.exe Command-line tool

Open a Command Prompt window and type in:

The SystemInfo command outputs more information than you need. To get the OS Name and OS Version fields from the output, type this in the Command Prompt window:

The findstr command will parse the output and display only the two lines (OS name and version.)

Windows 10 Build/Version Upgrade History

Did you know that Windows 10 keeps track of your every build/feature upgrade in the registry? Redditor u/sizzlr has found an interesting registry location and wrote a PowerShell script to unscramble the Windows 10 build installation dates from the registry.

Every time you install a feature update, Windows 10 creates a new subkey named “Source OS (Updated on )” and a bunch of values in the right pane. The registry key is located at:

Additionally, there are two values, namely InstallTime and InstallDate, which store the install date and time. The following PowerShell script gathers all the details for you and presents in a table:

Do you know any other methods to find the Windows build, OS version and bitness? Let’s know in the Comments section below.


Windows Server 2019 build numbers and ISO availability

Is there a list of the Windows Server 2019 build numbers? Do the builds increment each month after you install Cumulative Updates? And do the ISO files that let you install Windows Server get updated every now and then?

2 Answers

The ISO update frequency may depend on your source of downloads. For my Visual Studio subscription there are multiple Server 2019 build versions available for download.

—please don’t forget to Accept as answer if the reply is helpful—

Windows Server 2019 and Windows 10 version 1809 have same system build number and same structure. We could refer the link below to get the detailed released information about every system build number. I also create a capture for some part of build number.

After you installed every update package (no matter security update or cumulative update), the system build number will increase to a bigger number which corresponding to the update package KB number.

I am not sure if I understanding correctly about your last question, ISO file is just a setup or upgrade measure we used, it will not affect system to get update. System has a build-in update trigger in Task which will check for update every 22 hours, if you have a network connection, nothing will block system update, it is just able to delay through Group Policy or setting configuration.

If I misunderstood your issue, or you have any confuse, please reply to us directly.