Microsoft's KB5079391 non-security update, released on March 26, 2026, aimed to improve the stability and reliability of the Windows operating system but has faced installation issues, with many users encountering the 0x80073712 error code. This error indicates that something is broken or missing in the update files. The update includes support for monitors exceeding 1,000 Hz, a revamped About page in Settings, a new Narrator feature powered by Copilot, and enhancements to File Explorer. The update is optional and released in preview mode, but the lack of a workaround for installation remains a concern for users.