Microsoft says the recent reports that a Windows 11 cumulative update “bricked” consumer SSDs are not supported by its telemetry and lab findings, and vendor testing so far has failed to reproduce a fleet‑level failure tied to the August servicing wave tracked as KB5063878.
Background
The story...
Phison has publicly acknowledged and replicated a key finding first raised by the PCDIY community: a wave of disappearing and allegedly “bricked” NVMe SSDs linked in timing to Windows 11’s August cumulative update (KB5063878) appears to have been driven, in at least some test cases, by...
Microsoft says its August Windows 11 security update (KB5063878) is not behind the recent wave of reports alleging SSDs and HDDs have been rendered inaccessible or corrupted, but the episode has exposed gaps in forensic clarity and left many users mistrustful of a conclusion drawn without a...
Last week’s viral panic about a Windows 11 update “bricking” SSDs has been louder than the underlying evidence — but it also exposed real, repeatable failure patterns that deserve careful attention from users and IT teams. Microsoft and Phison, the SSD controller vendor most frequently named in...
Microsoft’s investigation into reports that the August 2025 Windows 11 24H2 cumulative update (KB5063878) was bricking SSDs concludes, for now, that there is no detectable connection between the patch and the drive failures users reported — but the episode exposes how fragile trust is between OS...
Microsoft’s latest public update on the mid‑August patch storm is straightforward: after investigation, the company says the August 2025 cumulative rollup did not cause a widespread failure mode that “breaks” SSDs, but the episode still exposes fragile cross‑stack dependencies and persistent...
Microsoft’s August Windows 11 cumulative update has ignited a fraught, still‑unresolved investigation after community testers and some independent labs reported that sustained heavy write operations could cause certain NVMe SSDs to disappear from Windows — and, in a minority of cases, become...
Phison’s latest test summary puts the disputed SSD failures tied to Windows 11 updates into a new, uneasy middle ground: vendors and Microsoft say they cannot reproduce a widespread “bricking” problem, while a small but alarming set of user reports continues to describe drives disappearing and...
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...
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...
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...
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...
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 has acknowledged an active investigation after multiple community researchers, test benches and SSD vendors reported that the Windows 11 August cumulative (commonly tracked as KB5063878, OS Build 26100.4946) can cause certain SSDs to vanish from the operating system during sustained...
Phison has confirmed it is investigating a widespread storage regression tied to Windows 11’s August cumulative update (KB5063878) while simultaneously denouncing and legally challenging a circulated document that falsely claims to be an internal Phison report linking the problem exclusively to...
Microsoft has temporarily paused the roll‑out of recent Windows updates after a cascade of high‑impact problems—including broken recovery tools, WSUS installation failures, and reports of storage devices becoming inaccessible—hit a subset of users and enterprise environments nationwide...
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New Windows 11 24H2 cumulative updates released in August have been linked to a worrying, reproducible storage regression that can make some SSDs and a few HDDs vanish from the operating system during heavy, sustained writes — in a number of community tests the failure has led to corrupted or...
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Phison has confirmed it is investigating reports that Microsoft’s August cumulative for Windows 11 (24H2) — distributed as KB5063878 — is associated with a storage regression that can make certain NVMe SSDs stop responding or disappear from Windows during large, sustained write operations...
Microsoft has quietly confirmed that a routine August security roll‑out has broken core recovery features on multiple Windows builds, and an out‑of‑band emergency update is imminent to fix failed Reset and Recovery operations for affected platforms. (windowslatest.com)
Background
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known issue rollback
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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...