Microsoft’s August Patch Tuesday lands as a combined servicing stack and cumulative update that not only patches the usual security holes but also delivers a substantive set of user-facing improvements for Windows 11 version 24H2 — including Copilot+ feature updates, a redesigned...
Microsoft’s August Patch Tuesday delivers fresh cumulative updates for Windows 11 — KB5063878 for the 24H2 channel and KB5063875 for the 22621/22631 families — packaged as combined Servicing Stack Updates (SSU) plus Latest Cumulative Updates (LCU), with security fixes, reliability patches, and...
2026 expiration
ai components
august 2025
copilot ai
copilot+
firmware updates
kb5063875
kb5063878
kek db updates
lcu
oem coordination
os build 22621.5768
os build 26100.4946
patch tuesday
secure boot
secure boot certificates
ssu
windows 11
windows update for business
wsus
Windows 11 August 12, 2025 — KB5063878 (24H2) & KB5063875 (22H2 / 23H2)
An in‑depth Breakdown for WindowsForum.com (Markdown)
Short version (TL;DR)
Microsoft released the August 12, 2025 Patch Tuesday cumulative updates for Windows 11. The 24H2 servicing branch is updated as KB5063878 (OS Build...
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...
august 2025 update
catalog checkpoint
intune
kb5063875
lcu
os build 22621.5768
os build 22631.5768
pilot testing
rollback plan
rollout guidance
sccm
security update
servicing stack update
ssu
windows 11
windows update
windows update for business
wsus
Microsoft has published the August 12, 2025 cumulative security update for older Windows 11 branches — KB5063875, which updates OS Builds 22621.5768 and 22631.5768 — delivering a combined Latest Cumulative Update (LCU) and Servicing Stack Update (SSU) for devices still on Windows 11 versions...
22h2
23h2
certificate expiration
copilot reliability
deployment
end of servicing
firmware
intune
kb5063875
kek
lcu
microsoft update catalog
pilot testing
secure boot
security update
ssu
windows 11
windows update
wsus
Microsoft’s August cumulative update for Windows 11, version 24H2 — KB5063878 (OS Build 26100.4946) — ships as a combined Servicing Stack Update (SSU) plus Latest Cumulative Update (LCU), bringing routine security and quality fixes while renewing attention on an industry-wide operational...
Microsoft released a hotpatch for Windows 11 Enterprise LTSC 2024 today — KB5064010 (OS Build 26100.4851) — delivering targeted security and quality improvements while bundling the latest servicing stack update and extending hotpatch availability to eligible Arm64 Enterprise devices.
Background...
Microsoft released the August 12, 2025 cumulative update for Windows 11 servicing branches that use OS builds 22621 and 22631 — published as KB5063875, updating systems to OS Build 22621.5768 / 22631.5768 — a standard Patch Tuesday security rollup that Microsoft bundles with a servicing-stack...
Microsoft released the August 12, 2025 cumulative update for Windows 11, version 24H2 — KB5063878 — published as a combined Servicing Stack Update (SSU) plus Latest Cumulative Update (LCU) that installs as OS Build 26100.4946, delivers a set of security and quality fixes, and bundles targeted AI...
Microsoft has released the August 12, 2025 cumulative update for Windows 11, version 24H2 — KB5063878 (OS Build 26100.4946) — delivered as a combined Servicing Stack Update (SSU) plus Latest Cumulative Update (LCU). The package bundles security and quality fixes, small AI component updates...
Microsoft's Security Update Guide lists CVE-2025-53136 as a Windows NT OS Kernel information disclosure vulnerability that can allow an authorized local attacker to read sensitive kernel-resident data after certain processor optimizations remove or modify security‑critical code paths. The...
Microsoft released the August 12, 2025 cumulative security update for Windows 11, version 24H2 — KB5063878 (OS Build 26100.4946) — a combined LCU+SSU package that continues July’s quality fixes, delivers component updates for Copilot+ AI features, and reiterates a critical Windows Secure Boot...
Microsoft has shipped the August 12, 2025 cumulative security update for Windows 11, version 24H2 (KB5063878, OS Build 26100.4946), a routine Patch Tuesday release that combines the latest servicing stack update with the monthly cumulative update, patches a range of security issues, and contains...
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...
2026 expiration
24h2
ai components
air-gapped deployment
august 2025
certificate expiration
certificate expiry 2026
configmgr
copilot ai
copilot+
enterprise rollout
firmware updates
kb5063875
kb5063878
kek ca 2011
kek ca 2023
kek db updates
lcu
oem coordination
oem firmware
os build 22621.5768
os build 26100.4946
patch tuesday
rollout testing
secure boot
secure boot certificates
servicing stack update
ssu
uefi ca 2011
windows 11
windows update
windows update for business
wsus