Skip to content
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

Written By Anoop C Nair
Last Updated August 23, 2024
Posted In Windows
SHARE

Let’s find out Windows 10 21H1 version number and build number structure to avoid confusion for SCCM/ConfigMgr admins. The build number is the unique number for each major version of Windows 10. Windows 10 major versions are released twice a year.

I think the 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.

Windows 10 version number and build number are not the same. How many of you know the structure of Windows 10 major.minor.build.rev version number standards? The structure of Windows 10 version details are explained in Windows 10 Build Numbers Version Numbers.

How to Find the 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.

Patch My PC
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 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

So the question is how to get the full version number of Windows 10 21H1. 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. I’m not sure how this will change for the next generation of Windows 10.

  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

Resources

Windows 10 – Release information

Author

Anoop C Nair has been Microsoft MVP for 10 consecutive years from 2015 onwards. He is a Workplace Solution Architect with more than 22+ years of experience in Workplace technologies. He is a Blogger, Speaker, and Local User Group Community leader. His primary focus is on Device Management technologies like SCCM and Intune. He writes about technologies like Intune, SCCM, Windows, Cloud PC, Windows, Entra, Microsoft Security, Career, etc.

Written by

Anoop C Nair is Workplace Technology solution architect with 25+ years of experience in global enterprise organizations such as JP Morgan, Capgemini, etc. Microsoft Certified Trainer. Microsoft MVP from 2015 onwards for consecutive 11+ years! He also conducts Intune and modern workplace tech training for enterprise organizations. He is Blogger, Speaker, and Founder of HTMD Community and HTMD Conference. His main focus is on Device Management technologies like Intune, Windows, Cloud PC. He writes about technologies like Intune, SCCM, Windows, Cloud PC, Windows, Entra, Microsoft Security.

Discussion

Join the discussion

Your email address will not be published. Required fields are marked *

Related guides

Intune

Windows 11 KB5101650 KB5099414 July 2026 Patch and 3 Zero Day Vulnerabilities and 570 Flaws

Key Takeaways Windows 11 KB5101650 KB5099414 July 2026 Patch and 3 Zero Day Vulnerabilities and 570 Flaws! In the July 2026 Patch, Microsoft introduced new features designed to improve the overall Windows experience. The update adds enhancements to Windows Update for more flexible update management and introduces Point-in-Time Restore, providing an additional recovery option for […]

AC Anoop C Nair 9 min read
Intune

BitLocker Prompt Issue After June Patch KB5094126 Secure Boot UEFI 2023 Certificate Update

Key Takeaways BitLocker Prompt Issue After June Patch KB5094126 Secure Boot UEFI 2023 Certificate Update! After deploying the June 2026 Windows update (KB5094126), some HP EliteDesk 800 G6 devices began prompting for the BitLocker recovery key after every reboot. Based on our investigation, the Secure Boot UEFI 2023 certificate update does not appear to be […]

AC Anoop C Nair 5 min read
Microsoft Defender for Endpoint

Microsoft Defender for Endpoint EDR Updates are now Separate from Monthly Windows Security Updates for Faster Protection

Key Takeaways In this post, we are discussing how Microsoft Defender for Endpoint EDR Updates Will Be Delivered Through Microsoft Update. Microsoft has introduced a new update model for Microsoft Defender for Endpoint Detection and Response (EDR) security updates. Previously, these updates were included with the monthly Windows security updates. This change enables Microsoft to […]

AC Anoop C Nair 5 min read