Windows Build Decoder
What a Windows build number means: 10.0.26100.2314 is Windows 11 24H2 with the November 2024 update. Version, KB, support dates, updates behind.
Paste a Windows build number from winver, ver, a system inventory or a vulnerability scan:
10.0.26100.2314, 19045.5487, Microsoft Windows [Version 10.0.22631.4460], a KB number
or a version like 22H2. You get the Windows version (the same build is often a client and a server release),
the cumulative update it has, how many monthly security updates behind it is, and how long that version gets updates.
Versions, updates and dates come from Microsoft's release information for
Windows 11,
Windows 10 and
Windows Server, read 2026-10-28.
Try: 10.0.26100.2314, 19045.5487, 22631.4460, 20348, 17763, KB5046617, 22H2
Finding a computer's build
| CMD | ver | Prints Microsoft Windows [Version 10.0.26100.2314]; paste the whole line. |
|---|---|---|
| PowerShell | $v = Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion'; "$($v.CurrentBuild).$($v.UBR) $($v.DisplayVersion)" | Build, revision (UBR) and version. ProductName in the same key still says Windows 10 on Windows 11; go by the build. |
| Remote computers | Invoke-Command -ComputerName PC01 { cmd /c ver } | Or read the same registry values over remote registry. |
| Settings | winver | Shows the version and OS build. [Environment]::OSVersion leaves the revision at 0, so don't use it. |