Microsoft and Phison are publicly at odds over whether last month’s Windows 11 cumulative update (commonly tracked as KB5063878) caused data-loss and device‑disappearance issues on some NVMe SSDs — and the debate reveals a messy intersection of community test benches, vendor lab validation...
backups
community testing
data loss risk
engineering firmwarefirmwarehashesfirmware provenance
kb5063878
nvme ssd
patch tuesday
phison
production firmware
reproduction
ssd firmware
sustained writes
telemetry
thermal throttling
windows 11
windows update
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...
