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 laborious disk drives (HDDs).
Redmond first informed 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 methods and commenced accumulating person experiences with extra particulars from these affected.
“After thorough investigation, Microsoft has discovered no connection between the August 2025 Home windows safety replace and the kinds of laborious drive failures reported on social media,” Microsoft mentioned in an replace to the service alert this week.
“As all the time, 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 system companions to breed the problem, however famous that neither telemetry nor inner 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 laborious 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 information or many information directly) to drives that have 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 methods with Corsair Pressure MP600, Maxio SSD, SanDisk Excessive Professional, Kioxia Exceria Plus G4, Kioxia M.2, and different drives with InnoGrit and Phison controllers.
In line with experiences from affected customers, whereas a few of the impacted drives received revived after restarting the pc, the remaining remained inaccessible even after a system reboot.
A spokesperson for NAND controller maker Phison informed BleepingComputer on Wednesday that the corporate was “working with Microsoft to resolve the problem.”
“We perceive the disruption this may occasionally have precipitated and promptly engaged business stakeholders. [..] Right now, the controllers which will have been affected are underneath 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 laborious drives which might be over 60% full are suggested to keep away from downloading, copying, or writing giant information (tens of gigabytes).
46% of environments had passwords cracked, practically doubling from 25% final yr.
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