os build 26100.4946

Microsoft has released KB5066360, a targeted hotpatch for Windows PowerShell that corrects an interoperability and security regression affecting PowerShell Direct (PSDirect) when host and guest virtual machines are unevenly patched; the update is a no-restart hotpatch for eligible systems and...

Microsoft has published KB5066360, a hotpatch that updates Windows PowerShell on Windows 11 Enterprise LTSC 2024 to OS Build 26100.6569, addressing a specific PSDirect connectivity failure that could, under narrow conditions, allow unauthorized non-administrator access between host and guest...

Microsoft has published the August 2025 non‑security preview update for Windows 11, version 24H2 — delivered as KB5064081 and shipping an updated servicing stack that identifies as OS Build 26100.5074 — packing a mix of staged AI features, UI polish, reliability fixes, and several...

Microsoft released an optional Preview update on August 29, 2025 — KB5064081 (delivered as OS Build 26100.5074) — that packages an updated servicing stack plus a broad set of consumer and enterprise-facing changes for Windows 11 (24H2). The package continues Microsoft’s pattern of shipping...

A wave of community test results and vendor confirmations this week has put the latest Windows 11 cumulative update under a harsh spotlight: several SSDs can disappear from Windows during sustained, large write operations after installing the August 12, 2025 update (KB5063878), with a...

The August 2025 Windows 11 cumulative update (KB5063878, OS Build 26100.4946) introduced a networking regression that is causing severe stuttering, lag, and choppy audio/video in NDI-based streaming workflows — a problem Microsoft has confirmed and that currently requires configuration...

Microsoft has confirmed that the August cumulative security update for Windows 11 (KB5063878, OS Build 26100.4946) is causing severe stuttering, lag, and choppy audio/video when using NDI-based streaming flows — an issue that hits production tools such as OBS and NDI Tools and has forced...

Microsoft and several SSD vendors are investigating reports that the August 12, 2025 cumulative update for Windows 11 (KB5063878, OS Build 26100.4946) can trigger a storage regression that makes some SSDs disappear during sustained, large writes — a failure mode that, in a minority of reports...

Microsoft and SSD vendors have opened an investigation after multiple independent testers and users reported that the August 12, 2025 Windows 11 cumulative update (KB5063878, OS Build 26100.4946) can cause some NVMe and SATA drives to stop responding, vanish from the operating system, and — in a...

Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) has been linked by multiple community tests and specialist outlets to a narrow but severe storage regression in which some NVMe SSDs can suddenly become unresponsive or disappear during sustained, large writes — a...

The August cumulative for Windows 11 — identified as KB5063878 (OS Build 26100.4946) — has been linked by multiple independent testers and tech outlets to a reproducible storage regression that can make some NVMe SSDs disappear mid-write and, in a subset of reports, leave files or partitions...

Last week’s August Patch Tuesday delivered the usual mix of security fixes and servicing updates — and with it a familiar enterprise headache: a cluster of delivery- and recovery-related regressions that have already prompted Microsoft to issue targeted mitigations and begin emergency servicing...

The Windows update ecosystem once again landed in the headlines this month after community researchers and multiple publications raised alarms about KB5063878 — the August 12, 2025 cumulative update for Windows 11 24H2 — and claims that a sustained-write workload can make some NVMe SSDs...

Microsoft’s August cumulative for Windows 11 — released as KB5063878 (OS Build 26100.4946) — is now at the center of a rapidly developing reliability story: independent testers and multiple tech outlets report that, under sustained large writes (commonly cited around 50 GB and above), some NVMe...

Microsoft’s Windows 11 24H2 rollout has already spawned two separate storage headaches: an earlier compatibility surge that produced looping Blue Screens of Death (BSODs) on certain Western Digital and SanDisk NVMe drives, and a later August 12, 2025 cumulative patch (KB5063878, OS Build...

Microsoft’s staggered Windows 11 24H2 rollout has tripped a serious compatibility landmine: scattered but reproducible reports show that one recent cumulative update can cause some NVMe SSDs to become unresponsive or vanish during sustained large writes, and earlier instances of the 24H2 feature...

Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) has been tied by multiple independent community tests and tech outlets to a serious storage regression: under sustained, large sequential writes some SSDs can stop responding, disappear from Windows, and — in a...

Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) shipped with security fixes — and within days the patch was linked to two very different reliability problems: an enterprise deployment failure that produced WSUS/SCCM install errors, and a separate cluster of...

A serious storage regression tied to Microsoft’s August cumulative update for Windows 11 — KB5063878 (OS Build 26100.4946) — has surfaced in the wild: users and independent testers report that sustained, large file writes can cause some NVMe SSDs to stop responding, disappear from Windows, and...

A mid‑August cumulative update for Windows 11 — KB5063878 (OS Build 26100.4946), released on August 12, 2025 — is being linked by multiple independent community tests and tech outlets to a storage regression that can render some SSDs inaccessible after sustained, large sequential writes, with...