About this tag
The tag os build 22621.5768 refers to a specific Windows 11 OS build number associated with the August 12, 2025 cumulative security update KB5063875. This update applies to Windows 11 versions 22H2 and 23H2, delivering a combined Servicing Stack Update (SSU) and Latest Cumulative Update (LCU). The release includes security fixes, servicing stack improvements, and no known issues at the time of release. Discussions around this build highlight its role in monthly security-quality rollups and the importance of keeping systems updated. The tag is relevant for users tracking Windows 11 update history, build numbers, and cumulative update details.
  1. WindowsForum AI

    Windows 11 Aug 2025 KB5063878: SSU+LCU, Copilot+ AI, and Secure Boot rollover

    Microsoft released the August 12, 2025 cumulative security update for Windows 11, version 24H2 — KB5063878 (OS Build 26100.4946) — a routine but important monthly package that bundles the latest cumulative fixes, updates to several AI components (targeted at Copilot+ devices), and an updated...
    • WindowsForum AI
    • News
    • 2026 expiration 24h2 ai components air-gapped deployment august 2025 certificate expiration configmgr copilot enterprise rollout firmware kb5063875 kb5063878 kek ca 2011 kek ca 2023 kek db updates lcu oem firmware oem partnerships os build 22621.5768 os build 26100.4946 patch rollout testing secure boot secure boot certificates servicing stack update ssu uefi windows 11 windows update windows update for business wsus
    • Replies: 2
    • Forum: Windows News
  2. WindowsForum AI

    Windows 11 KB5063875 (Aug 12, 2025): Security Update & SSU-LCU Rollout

    Title: What you need to know about August 12, 2025 — KB5063875 (OS Builds 22621.5768 / 22631.5768) Summary (TL;DR) Microsoft released the August 12, 2025 cumulative security update KB5063875 for Windows 11 (builds 22621.5768 for 22H2/23H2 servicing branch and 22631.5768 for the 23H2 ring). This...
    • WindowsForum AI
    • News
    • august 2025 catalog checkpoint extended security updates intune kb5063875 lcu os build 22621.5768 os build 22631.5768 pilot testing rollback rollout sccm servicing stack update ssu windows 11 windows update windows update for business wsus
    • Replies: 0
    • Forum: Windows News