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...
Phison has publicly acknowledged that two recent Windows 11 security updates — KB5063878 and KB5062660 — are associated with a cluster of SSD failures that make drives vanish during large, sustained write operations, and the admission has sparked urgent questions about update testing, firmware...
Microsoft’s August cumulative for Windows 11 has left a trail of disrupted installs and disappearing NVMe drives, and Phison — maker of widely used SSD controllers including the PS5012‑E12 — has confirmed it is investigating reports that the updates KB5063878 and KB5062660 can trigger...