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...
backup
community testing
data loss
firmwarefirmwarehashesfirmware provenance
heavy-writes
kb5063878
nvme ssd
patch
phison
reproduction
ssd firmware
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.
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