Microsoft has discovered no hyperlink between the August 2025 KB5063878 safety replace and buyer experiences of failure and knowledge corruption points affecting solid-state drives (SSDs) and onerous disk drives (HDDs).
Redmond first advised BleepingComputer final week that it’s conscious of customers reporting SSD failures after putting in this month’s Home windows 11 24H2 safety replace.
In a subsequent service alert seen by BleepingComputer, Redmond mentioned that it was unable to breed the problem on up-to-date programs and started amassing consumer experiences with further particulars from these affected.
“After thorough investigation, Microsoft has discovered no connection between the August 2025 Home windows safety replace and the forms of onerous drive failures reported on social media,” Microsoft mentioned in an replace to the service alert this week.
“As at all times, we proceed to observe suggestions after the discharge of each Home windows replace, and can examine any future experiences.”
The corporate has additionally labored with storage gadget companions to breed the problem, however famous that neither telemetry nor inside testing has revealed a rise in disk failures or file corruption after putting in this month’s Home windows 11 24H2 safety replace.
A number of onerous drive fashions reportedly impacted
This difficulty was first reported final week by Japanese customers who skilled SSD points throughout heavy write operations (like writing giant recordsdata or many recordsdata directly) to drives that had been over 60% full on units with this month’s Home windows 11 24H2 safety replace put in.
Others have additionally encountered the identical difficulty on programs with Corsair Drive MP600, Maxio SSD, SanDisk Excessive Professional, Kioxia Exceria Plus G4, Kioxia M.2, and different drives with InnoGrit and Phison controllers.
Based on experiences from affected customers, whereas among the impacted drives received revived after restarting the pc, the remainder remained inaccessible even after a system reboot.
A spokesperson for NAND controller maker Phison advised BleepingComputer on Wednesday that the corporate was “working with Microsoft to resolve the problem.”
“We perceive the disruption this will likely have prompted and promptly engaged business stakeholders. [..] At the moment, the controllers which will have been affected are beneath evaluation and we’re working with companions,” the spokesperson mentioned.
Till the foundation trigger behind this difficulty is discovered and addressed, Home windows 11 customers with onerous drives which might be over 60% full are suggested to keep away from downloading, copying, or writing giant recordsdata (tens of gigabytes).
46% of environments had passwords cracked, almost doubling from 25% final 12 months.
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