Windows 11 KB5062660 is an optional update for Windows 11 24H2, introducing features like Recall AI for users in Europe. The update is approximately one gigabyte in size and upgrades the operating system to Windows 11 Build 26100.4770. Users can access it through Windows Update or direct download links from the Microsoft Update Catalog. Recall AI allows users to save screen snapshots but raises privacy concerns, which can be managed through settings. The update also includes Quick Machine Recovery (QMR) for efficient system recovery, improvements in system stability, and various enhancements such as inline messages in the Snap bar, streamlined Windows Search settings, enhanced controller navigation, and fixes for issues in the Settings app and File Explorer.