The Windows 11 SSD fiasco has apparently taken a new turn, as, according to Microsoft, its latest security update didn’t affect storage drives at all, but consumer reports say something otherwise.
Microsoft Is Unable to Reproduce SSD Crashes With The New Security Updates, Ruling Out Their Involvement
For those unaware, the recent Windows 11 ‘KB5063878’ security update caused SSDs to crash, specifically when they were under high-volume write instances. The issue wasn’t specific to just a single vendor or SSD manufacturer; rather, it was more generic, which indicated that anyone out there with a storage drive could face the problem. Now, Microsoft has issued a service alert (via BleepingComputers), where the firm claims that they are unable to reproduce the issue, and no connection is found between SSD crashes and the latest security updates.
After thorough investigation, Microsoft has found no connection between the August 2025 Windows security update and the types of hard drive failures reported on social media. As always, we continue to monitor feedback after the release of every Windows update, and will investigate any future reports.
According to the firm’s internal testing, installing the latest Microsoft Windows 11 security update poses no threat to consumer SSDs; however, the on-ground situation says something else. Initially, it was claimed that the issue is specific to Phison-based SSDs, but after an extensive collaboration with the manufacturer, Phison reported that after 4,500 cumulative testing hours on their SSDs, they were unable to reproduce the problem on the ‘KB5063878’ and ‘KB5062660’ updates.
Interestingly, Phison also revealed that SSDs might have been compromised due to being in extended periods of workloads, without proper equipment such as a dedicated heatsink or ample heat dissipation, which might have caused the drives to crash out. For now, there isn’t any solid reasoning behind the problem, since SSD manufacturers and Microsoft cannot replicate the issue on their testing systems, which is why there is a deadlock. However, there are several reports over public forums on SSDs getting bricked during the security update period.
For now, we advise our readers not to operate SSDs under intense workloads since that is claimed to be one of the factors behind the crashes. We are monitoring how the story evolves, so make sure to stay tuned.
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