Windows 11 users faced a sudden and alarming data‑integrity scare when an August cumulative update was linked to a reproducible failure mode that can make certain SSDs “vanish” from the operating system during sustained, large writes — a problem that can truncate files, corrupt partitions, and...
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 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...
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ssd disappearing
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