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Microsoft has found no evidence that a recent Windows 11 update can corrupt a PC’s SSD, despite some user reports flagging the issue.
After investigating reported problems with the Windows 11 24H2 update, KB5063878, Microsoft reportedly sent a service alert to business users, stating it found no problems with the patch.
“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,” the company wrote, according to BleepingComputer.
The same service alert also previously said Microsoft had been trying to reproduce the errors with the help of storage drive partners. “Neither internal testing nor telemetry suggested an increase in disk failure or file corruption,” the company wrote at the time. “Microsoft customer support teams also haven’t received reports of customers experiencing this issue.”
This comes after Taiwanese memory component supplier Phison also said it couldn’t reproduce the issue after 4,500 cumulative testing hours. "We were not able to reproduce the reported issue, and no partners or customers have reported that the issue impacted their drives at this time," the company also told PCMag.
A Japanese user first flagged the issue on X. Other social media users chimed in to say they'd experienced the same problem. One reader in South Africa even reached out to PCMag today and said, “This morning my PC was not responding and I restarted. Blue screen and our IT company confirmed SSD dead.”
Still, other users who manage fleets of computers say they haven't been able to reproduce the issue. The problem supposedly pops up if you're downloading or trying to move more than 50GB on an SSD that's already 60% full. The error can cause the SSD to vanish or your OS to freeze or crash. However, PCMag couldn't replicate the problem either.
In the meantime, Microsoft wrote in the service alert: “As always, we continue to monitor feedback after the release of every Windows update, and will investigate any future reports.” Windows 11 has been installing the KB5063878 update automatically, but you can roll it back if you’re worried.