In recent days, several Windows 11 users have reported SSD failures after installing what appeared to be the 24H2 update. These incidents, shared across various tech forums, initially triggered fears of a possible cyberattack disguised as a routine Windows update.
Some users in Japan were among the first to raise red flags. They reported that SSDs with around 60% storage capacity abruptly failed, and even system restarts did not restore functionality. This led to growing speculation that the update may have covertly turned their systems into command-and-control (C2C) nodes in a cyberattack.
However, Microsoft has addressed the situation directly. The company investigated the matter in collaboration with select SSD manufacturers and clarified that the August 2025 KB5063878 security update had no connection to drive failures or data corruption, contrary to what some media outlets suggested.
To reach this conclusion, Microsoft conducted internal testing and analyzed system telemetry data to rule out any causal link between the update and the reported issues.
The Redmond-based tech giant reaffirmed its longstanding commitment to user privacy and system security. It emphasized that it has never violated any privacy or cybersecurity standards, and reassured users that protecting customers remains a top priority.
Despite Microsoft’s findings, user reports indicate that SSDs from brands such as Corsair, Maxio, SanDisk, and Kioxia were among the most affected. While the exact cause of the failures remains uncertain, it appears to be more likely a hardware compatibility or firmware-related issue rather than a deliberate cyberattack or a flaw in the Windows update itself.
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