Word is circulating around the Internet that the latest Windows 11 update may be causing some potentially serious problems for SSD owners. More specifically, some users in Japan have reported that their SSDs were corrupted, making it impossible to read files or even mount the drive properly. Users also reported losing out on SMART features , which allow SSDs to self-monitor and report issues.

The update in question is KB5063878, which Microsoft launched to the public on Aug. 12. It’s a Windows Secure Boot update that resets certification for devices that are set to expire in June 2026. There doesn’t appear to be anything about the update that might cause concern, but some scattered user reports indicate differently.

Mashable has not been able to independently verify these repor

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