Guide OS (Operating Systems) Microsoft Windows 11 Get current Windows 11/10 Build Number Updated February 15 2026
The best way to get the current build is with the command line:

Copy to Clipboardver


You can get it via Powershell:
Copy to Clipboard $info = Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion" $major = $info.CurrentMajorVersionNumber $minor = $info.CurrentMinorVersionNumber $build = $info.CurrentBuild $ubr = $info.UBR # Combine into the full string $fullBuild = "$major.$minor.$build.$ubr" $fullBuild



Full Windows Build List
Win1126H12026 UpdateFeb 10, 202610.0.28000.1575
Win1125H22025 UpdateSep 30, 202510.0.26200.6584
Win1124H22024 UpdateOct 1, 202410.0.26100.1742
Win1123H22023 UpdateOct 31, 202310.0.22631.2428
Win1122H22022 UpdateSep 20, 202210.0.22621.521
Win1121H2Original ReleaseOct 4, 202110.0.22000.194
Win1022H22022 UpdateOct 18, 202210.0.19045.2130
Win1021H2November 2021 UpdateNov 16, 202110.0.19044.1288
Win1021H1May 2021 UpdateMay 18, 202110.0.19043.985
Win1020H2October 2020 UpdateOct 20, 202010.0.19042.572
Win102004May 2020 UpdateMay 27, 202010.0.19041.264
Win101909November 2019 UpdateNov 12, 201910.0.18363.476
Win101903May 2019 UpdateMay 21, 201910.0.18362.116
Win101809October 2018 UpdateOct 2, 201810.0.17763.1
Win101803April 2018 UpdateApr 30, 201810.0.17134.48
Win101709Fall Creators UpdateOct 17, 201710.0.16299.19
Win101703Creators UpdateApr 11, 201710.0.15063.138
Win101607Anniversary UpdateAug 2, 201610.0.14393.10
Win101511November UpdateNov 10, 201510.0.10586.3
Win101507Original ReleaseJul 29, 201510.0.10240.16405


List of all Win11 builds with patch levels from Microsoft:
https://learn.microsoft.com/en-us/windows/release-health/windows11-release-information

List of all Win10 builds with patch levels from Microsoft:
https://learn.microsoft.com/en-us/windows/release-health/release-information

List of all versions of Windows on Wikipedia:
https://en.wikipedia.org/wiki/List_of_Microsoft_Windows_versions



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