os build 26100.4946

Microsoft’s August cumulative for Windows 11 — KB5063878 (OS Build 26100.4946) — has been linked by independent testers and enthusiast communities to a reproducible and severe storage fault: under sustained large sequential writes (reports center around the 50 GB range), certain NVMe SSDs—and a...

Microsoft has acknowledged an emergency problem with the August 12, 2025 cumulative update for Windows 11 (KB5063878), after enterprise administrators reported widespread installation failures when the package is delivered through Windows Server Update Services (WSUS) and System Center...

Microsoft has confirmed that the August cumulative update for Windows 11 version 24H2 (KB5063878, OS Build 26100.4946) is failing to install on some enterprise-managed endpoints delivered via WSUS and SCCM, and Redmond has published a Known Issue Rollback (KIR) policy that administrators can...

Microsoft has confirmed that the August 12, 2025 cumulative update for Windows 11 version 24H2 (KB5063878, OS Build 26100.4946) is failing to install on enterprise-managed devices when delivered via WSUS and SCCM, producing the Windows Update error code 0x80240069; Redmond is rolling a temporary...

Microsoft has confirmed that the August 12, 2025 cumulative update for Windows 11 (KB5063878, OS Build 26100.4946) is failing to install on managed endpoints delivered through WSUS and SCCM, producing the download/install error code 0x80240069; the company is offering a temporary Known Issue...

Microsoft's August cumulative for Windows 11, KB5063878 (OS Build 26100.4946), is rolling out as a mandatory security update but is triggering a fresh wave of update failures in managed environments — most commonly a WSUS/SCCM download crash flagged with error code 0x80240069 — and...

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...

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...

August 12, 2025, saw Microsoft publish KB5064010 — a hotpatch for Windows 11 Enterprise LTSC 2024 that advances the OS to OS Build 26100.4851, delivering targeted security hardening without the broad-feature changes or mandatory restarts that administrators dread. This release is part of...

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 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...

Microsoft has released an out-of-band (OOB) update, KB5064489, for Windows 11 version 24H2, addressing a critical issue that prevented certain Azure Virtual Machines (VMs) from booting when Virtualization-Based Security (VBS) was enabled. This problem primarily affected non-Trusted Launch...

Microsoft has released an out-of-band update, KB5064489, for Windows 11 version 24H2, elevating the OS build to 26100.4656. This unscheduled update addresses critical issues that emerged following the July 8, 2025, cumulative update (KB5062553). Key Improvements and Fixes: Resolution of Start...

Microsoft has released the KB5062553 update for Windows 11, version 24H2, bringing the OS build to 26100.4652. This cumulative update introduces several enhancements and addresses known issues to improve system performance and user experience. Key Highlights of KB5062553: Security Enhancements...

Stepping into July, one of the most keenly anticipated regular events in the Windows ecosystem has landed: the release of the July 2025 Windows security update. Windows 11, version 24H2, continues to gain momentum among personal and business users alike, and this cumulative update—KB5062553 (OS...

In a significant stride towards maintaining and enhancing the security posture of Windows 11, Microsoft has released the July 2025 cumulative security update—KB5062553 (OS Build 26100.4652). This update specifically targets Windows 11 version 24H2, building upon prior improvements while...

Windows 11 continues its relentless pace of refinement with the arrival of the June 2025 non-security preview update (KB5060829, OS Build 26100.4484) for version 24H2, now available across all editions. Coming just ahead of the summer’s full-scale security releases, this update underscores...

Here is a summary of the official Microsoft Support article for the June 11, 2025—KB5063060 (OS Build 26100.4351) Out-of-band update for Windows 11 version 24H2: Key Points from KB5063060 (OS Build 26100.4351) — Out-of-band Release Date: June 11, 2025 Applies to: Windows 11 version 24H2, all...

Here's a summary of the critical information about the Windows 11 Cumulative Update KB5060842, released with June 2025 Patch Tuesday: Key Points Release Date: June 10, 2025 Target Version: Windows 11, version 24H2 (OS Build 26100.4349) Main Focus: Security patching and addressing...