Microsoft's August 2025 security updates for Windows 10 and Windows 11 have caused multiple issues affecting users' ability to perform factory resets and access recovery options. The update KB5063878, specifically for Windows 11 24H2, has been reported to break the "Reset this PC" function and other recovery tools, prompting Microsoft to release an emergency out-of-band patch to address these problems. Additionally, the same update has been linked to SSD failures, including drives disappearing from the operating system and causing crashes. Microsoft has acknowledged these issues and is investigating reports of severe streaming problems and SSD malfunctions caused by the update. Workarounds have been issued to mitigate the impact while the company continues to work on permanent fixes. The situation has affected millions of devices running older versions of Windows 10 and Windows 11, leading to widespread user disruption.