The August Patch Tuesday update for Windows 11 version 24H2 (KB5063878) has sparked concern across online communities, with users reporting SSD—and in some cases HDD—failures and data corruption issues.
Initially, both Microsoft and SSD manufacturer Phison suggested there was no connection between the update and the storage problems. But over the weekend, members of the Facebook group PCDIY claimed that pre-release firmware might be the real cause.
Phison has since responded with a detailed statement shared with Neowin. According to the company, the testing that pointed to failures involved SSDs running engineering preview firmware, not the retail firmware used in consumer products.
Phison explained:
- The drives tested by PCDIY were using early engineering firmware, not the final consumer-ready version.
- When Phison repeated the same stress tests—large 100GB/1TB writes—on the Corsair Force Series MP600 2TB SSD with retail firmware, no crashes or failures occurred.
- Failures only appeared when using the non-retail engineering firmware paired with the Phison E16 NAND controller.
In short, retail versions of affected drives remain safe, and consumer models available on the market are not experiencing the reported issues.
At the time of writing, Corsair has not released its own statement on the matter, though one is expected soon. We’ll keep this story updated once the company comments publicly.
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