How to find your Windows version number

What is an operating system version number?

A version number is a unique set of numbers representing the specific release of an operating system.

The Windows OS version number follows the format of major.build.revision. For example, here’s what each number in 10.10240.16405 mean:

• 10 is the major version;
• 10240 is the build version;
• 16405 is the revision version.

If you want your team to use Windows 10 or a later version, enter, for example, 10.10240.16405 in the Device Security Posture Monitor Operating system version field.

To find the Windows version number on your device, you can run the command line winver or check it in the computer properties.

You can find more information about Windows version numbers here:

Major version information:

Operating System Version ⁠— (Win32 apps)

Build and release information (“Build” column):

Windows 11⁠ — release information
Windows 10 ⁠— release information

Information on older versions:

List of Microsoft Windows versions

Note: In case you have any questions or are experiencing any issues, please feel free to contact our 24/7 customer support team.