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Windows 11’s August servicing wave briefly looked like a potential storage disaster: users and hobbyist labs reported NVMe SSDs vanishing during large, sustained writes after installing the 24H2 cumulative update tracked as KB5063878 (and the related preview KB5062660), but Phison — the largest...

Phison’s lab campaign—more than 4,500 cumulative test hours and some 2,200 cycles—says it could not reproduce the Windows 11 KB5063878 “vanishing SSD” reports, but the episode still exposes a brittle cross‑stack interaction that administrators, gamers, and system builders should treat as a live...

Microsoft’s August cumulative for Windows 11 (KB5063878) lit a firestorm of community reports claiming large file copies could make some NVMe drives “vanish” or return corrupted after a reboot — but a coordinated vendor investigation led by NAND controller maker Phison found no reproducible...

The recent Windows 11 servicing wave that included security updates KB5063878 and the related preview KB5062660 ignited a flurry of alarm when hobbyist testers and everyday users reported NVMe SSDs disappearing — in some cases permanently — during large sustained writes, and much of the early...

Windows 11’s August servicing wave briefly looked like a storage disaster: community testers reported NVMe drives disappearing mid-write after installing security updates KB5063878 and KB5062660, and many fingers pointed at SSDs using Phison controllers. After an industry investigation...

Phison’s lab says the recent Windows 11 cumulative update is not “breaking” SSDs — but the episode lays bare how fragile modern storage stacks can be, how quickly panic and misinformation spread, and why conservative update practices and strong backups remain non-negotiable. Background /...

Phison says its lab work could not reproduce the Windows 11 SSD corruption reports that circulated after the August cumulative updates — but the episode exposes how fragile modern storage stacks can be when OS updates and controller firmware collide, and why backups, staged rollouts, and vendor...

Phison’s latest public stance changes the tone of what started as a panic: after industry-wide reports that a mid‑August Windows 11 cumulative update could cause NVMe SSDs to disappear during long writes, Phison says its internal testing — described as extensive — was unable to reproduce the...

Phison has confirmed it is investigating reports that a mid‑August Windows 11 cumulative update can trigger SSD instability — drives disappearing from Windows during sustained, heavy writes — and vendors, independent testers and Microsoft are coordinating forensic work while users are warned to...

Phison's latest public posture on the Windows 11 SSD scare shifts the narrative from an alleged vendor-level "bricking" spree to a coordinated investigation, but the episode leaves important questions about testing transparency, firmware distribution, and how quickly platform vendors communicate...

Microsoft’s August cumulative update for Windows 11 (KB5063878) has been linked by multiple independent testers and SSD vendors to a troubling storage regression: under sustained, large write workloads some SSDs temporarily vanish from the operating system — and in a subset of reports files...

Within days of Microsoft’s August 2025 Patch Tuesday, a cluster of independent testers and community posts began documenting a worrying pattern: after installing the Windows 11 24H2 cumulative update (tracked as KB5063878, with a related preview package KB5062660), some NVMe SSDs momentarily or...

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...

Silicon Motion's early reassurance — that “so far, none of our controllers are affected” by the Windows 11 update that has been making some NVMe drives disappear under sustained writes — is an encouraging datapoint, but it is provisional and incomplete: the incident remains an active...

Windows 11’s August cumulative update (KB5063878) has been linked to a reproducible storage regression that can make certain SSDs and HDDs disappear under sustained large writes, and Silicon Motion — according to community‑sourced forum responses — reports none of its controllers have shown the...

Phison has publicly disowned a circulated advisory that claimed Windows 11’s August cumulative update was uniquely “killing” Phison‑based SSDs, while the vendor — and several independent labs — simultaneously confirm an industry‑wide storage regression tied to the August 12, 2025 cumulative...

Silicon Motion’s brief forum reply claiming that “none of our controllers are affected” landed as a hopeful note amid a widening industry investigation into Windows 11’s August 2025 cumulative update (KB5063878) — but the evidence available to date shows a complex, cross‑stack problem that...

Microsoft and several SSD vendors are investigating reports that the August 12, 2025 cumulative update for Windows 11 24H2 (KB5063878, OS Build 26100.4946) can trigger a reproducible storage regression where some SSDs vanish from the operating system during sustained, large sequential writes — a...

A wave of reproducible reports and a parallel burst of misinformation have combined to create one of the more consequential Patch Tuesday headaches in recent memory: Microsoft’s August 12, 2025 cumulative for Windows 11 (KB5063878) has been linked to SSDs disappearing under sustained, heavy...

Microsoft’s August cumulative (KB5063878) for Windows 11 24H2 has been linked by multiple independent testers and industry observers to a storage regression that can make some NVMe SSDs disappear during heavy writes — sometimes temporarily, sometimes with irrecoverable damage — and the safest...