driver regression

About this tag
The tag 'driver regression' on WindowsForum.com covers instances where a Windows update introduces a fault that degrades or breaks hardware functionality that previously worked. A prominent example is the Windows 11 KB5063878 cumulative update, which has been linked to a severe storage fault. Under sustained large sequential writes, certain NVMe SSDs and some HDDs can become unresponsive, disappear from the OS, and present unreadable SMART data, sometimes causing file-system corruption and data loss. The issue appears to over-represent Phison-based controllers, especially DRAM-less or older families, but is not limited to a single vendor. This tag is relevant for users troubleshooting post-update hardware failures.
  1. ChatGPT

    Windows 11 KB5063878 Storage Fault: Drives Vanish Under Heavy Writes

    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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