Windows 10 Version Numbers Build Numbers Major Minor Build Rev | Easy Way to understand Version Numbers

Let’s understand Windows 10 Version Numbers Build Numbers. This post will try to keep the Windows 10 version Numbers and Windows 10 build numbers. There were many issues with Windows 10 upgrades and the quality of upgrades. There are fewer hotfixes released in the latest versions of Windows 10. So Windows 10 quality is getting stabilized with new versions.

The next generation of Windows might be announced at any time. I have a more detailed blog post in this Microsoft Almost Announced The Next Generation Of Windows | Windows 10X Is Not The Next Generation Anymore. You can check Windows 11 build numbers are also documented.

Related Post – Windows 10 Shortcut Keys Keyboard Shortcuts & Windows 10 Product Key Change Home to Professional Upgrade | Activate.

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Windows 10 Version Numbers Vs. Windows 10 Build Numbers

Windows 10 version number is in the year and which half of the year (H1 or H2). For example, the Windows 10 version released in April (4rd Month) 2020 is Windows 10 20H1.

  • The first two (2) digits of the Windows10 version are taken from the release year. In the above example (Windows 10 21H2), that is 2021?
  • The last two (2) digits of the Windows 10 version are taken either from
    • the first half of the calendar year – H1
    • or the Second part of the calendar year – H2.
    • In the above example – Windows 10 was released in the second half of the year.
  • Special version numbers for the major.minor.build.rev of Windows 10 structure is as follows – Windows 10 👉 10.0.19044.1202
    • Major = 10
    • Minor = 0
    • Build = 19044
    • Rev = 1202

Windows 10 build number is based internal development cycle. I think it’s based on the code base of the Windows operating system. Windows Server 2022 build number is 10.0.20348.169.

  • Windows 11 build number start with 20000
  • Windows 10 build number start with 10000
  • Windows 8.1 build numbers start with 9000
  • Windows XP build numbers start with 3000
Windows 10 Version Numbers & Build Numbers Major Minor Build Rev
Windows 10 Version Numbers & Build Numbers Major Minor Build Rev

Windows 10 Version Numbers with Number of Build Versions

You will get the latest details of Windows 10 version numbers and Windows 10 build numbers in the below table. These Windows 10 version numbers are of production releases of Windows 10.

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When you look at the Count of KB article column in the below table, you will be able to see indications about Windows 10 quality improvements.

I have not included the build and version numbers Windows 10 insider version numbers in this list.

Windows 10
Version 
Windows 10
Build 
Count of  KBs/
Build Versions
Date of
Availability
Windows 10 version 21H2 – GA – 10.0.19044.137919044.137916th Nov 2021
Windows 10 version 21H1 – 10.0.19043.137919043.137916th Nov 2021
Windows 10 version 20H2 – 10.0.19042.134819042.1348KB5007186
Windows 10 version 20H1 (2004) – 10.0.19041.134810.0.19041.1348 KB5007186
Windows 10 version 21H2 Release Preview – 10.0.19044.1320 19044.1320KB5006738
Windows 10 version 21H2 Pre Release – 10.0.19044.1319 19044.1319KB5003791Nov 2021 Patch Tuesday?
Windows 10 version 21H2 (preview) – 10.0.19044.120219044.120203th Sep, 2021
Windows 10 version 21H2 (Insider) – 10.0.19044.1149 19044.1149July 20th, 2021
Windows 10 version 21H1 – 10.0.19043.98519043.985May 18th, 2021
Windows 10 version 20H2 – 10.0.19042.57219042.572Oct 20th, 2020
Windows 10 version 20H1 2004 – 10.0.19041.32919041.329….May 27th, 2020
Windows 10 version 1909 – 10.0.18363.90018363.900Nov 12th 2019
Windows 10 version 1903 – 10.0.18362.90018362.900May 21st, 2019
Windows 10 version 1809 177638..November 13, 2018
Windows 10 version 1803 1713420April 30, 2018
Windows 10 version 1709 1629933October 17, 2017
Windows 10 version 1703 1506343April 5, 2017
Windows 10 version 1607 1439362August 2, 2016
Windows 10 version 1511 1058638November 10, 2015
Windows 10 version 1507 1024054July 29, 2015
Windows 10 Version Numbers Build Numbers Major Minor Build Rev | Best Method to understand Version Numbers

Windows 10 Build Numbers

The following table Contains Windows 10 build numbers and Windows 10 version numbers.

Windows 10 version 21H1 – 10.0.19043.985

Windows 10 20H2 – 10.0.19042.572

Windows 10 2004

Windows 10 2004 – 10.0.19041.329

Windows 10 1909

Windows 10 1909 – 10.0.18363.900

Windows 10 1903

Windows 10 1903 – 10.0.18362.900

1809 – Windows 10 Build Numbers

Build Numbers Windows 10 Version Numbers Build Numbers - Windows 10 Quality Improvements
Windows 10 Version Numbers Build Numbers – Windows 10 Quality Improvements

Windows 10 Wrong Version Numbers

Major versions of Windows 10 for the year 2021 would be 21H1 and 21H2. There are some confusing scenarios with Windows 10 21H1 OS Versions. It seems you get the wrong version number, like 10.0.19041.928, when you try to check the version number from SCCM Console Operating Systems Node.

How to Find Latest Windows 10 Version Number?

Let’s find out how to Find the Latest Windows 10 Version Number using the build-in Windows utility (WinVer.exe) and registry editor. You can click on the Start button and type WinVer to launch WinVer.exe.

Windows 10 21H1 Version Number | Build Number | Best Easiest Way to Find out Build Numbers
Windows 10 21H1 Version Number | Build Number | Best Easiest Way to Find out Build Numbers

The next option is to double confirm the version number from the registry editor. You can launch the registry editor you using the following method. You can click on the Start button and start typing regedit to launch the Registry Editor utility.

You need to navigate it to the following path in the registry to get the details of the Windows 10 20H1 version number/build number. Check the CurrentBuildNumber string value to find out Windows 10 version details.

📢Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\CurrentBuildNumber

Windows 10 21H1 Version Number | Build Number | Best Easiest Way to Find out Build Numbers
Windows 10 21H1 Version Number | Build Number | Best Easiest Way to Find out Build Numbers

Windows 10 21H1 Version Number | Build Number Structure

Let’s break down the Windows 10 21H1 and Windows 10 21H2 major.minor.build.rev version number structure for all of you. When you try to find out the version number using the winver command or from the registry, you get only the last two parts of the version numbers of Windows 10.

Windows 10 21H1 Version Number ➡ 10.0.19043.985

Windows 10 21H2 Version Number ➡ 10.0.19044.1319 

So the question is how to get the full version number of Windows 10 21H1 and 21H2. I think it’s easy to get the version number if you understand the structure of the version numbers. There are 4 (four) parts to the version number structure.

The first 2 (two) parts of version numbers are common for all the Windows releases until now. The Windows 8, Windows 7, and Windows XP versions of Windows releases. It is the same for Windows 11 and Windows Server 2022.

  1. Windows 10 Major Number = 10
  2. Windows 10 Minor Number = 0
  3. Windows 10 Build Number = 19043
  4. Windows 10 Rev Number = 985
Windows 10 21H1 Version - Windows 10 21H1 Version Number | Build Number | Best Easiest Way to Find out Build Numbers
Windows 10 21H1 Version Number | Build Number | Best Easiest Way to Find out Build Numbers

Author

Anoop is Microsoft MVP! He is a Solution Architect on enterprise client management with more than 20 years of experience (calculation done in 2021) in IT. He is Blogger, Speaker, and Local User Group HTMD Community leader. His main focus is on Device Management technologies like SCCM 2012, Current Branch, Intune. He writes about technologies like ConfigMgr, Windows 11, Windows 10, Azure AD, Microsoft Intune, Windows 365, AVD, etc.…