Windows 11 24H2 Security Update Causes SSD/HDD Failures and Potential Data Corruption - [security]
02:45 AM EDT - Aug,18 2025 - post a comment A significant security update rolled out by Microsoft with the Windows 11 24H2 (KB5063878) release is causing widespread issues for users, with reports surfacing that the update can render SSDs and HDDs inaccessible and may potentially corrupt user data. The issue began when users started experiencing installation failures with error code 0x80240069 on the KB5063878 update, but Microsoft’s subsequent hotfix seemed to alleviate those issues. Unfortunately, that did not mark the end of the saga.
As of this writing, Microsoft has not issued an official fix for the storage drive disappearance issue. Users are advised to avoid installing the KB5063878 update if possible, especially if relying on large file transfers or critical SSD/HDD storage. For those affected, unplugging the impacted drive and reconnecting it may temporarily restore visibility, but this is not an assured solution and may not prevent future data loss or corruption. Routine data backups and delaying installation of the problematic update are strongly recommended.
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