A recent update for Microsoft Windows, specifically Windows 11 KB5051987, has caused issues for users, including installation failures and problems with File Explorer becoming unresponsive when accessing folders like Desktop, Documents, or Pictures. Users can see File Explorer in Task Manager, but it remains largely nonfunctional. Other issues include an inoperable sidebar. The recommended solution is to uninstall the update via the Windows Update section in Settings. Users should locate the update, click 'Uninstall', and reboot the system. After uninstalling, they will revert to the January 2025 Update. If problems persist upon reinstalling KB5051987, users are advised to pause updates for a few weeks. This update is mandatory and installs automatically, making it necessary for users to manually uninstall it if they encounter issues. Microsoft is expected to address these problems in an optional update scheduled for February 2025.