The April 2025 cumulative update for Windows 11, identified as KB5055523, has caused issues with the Windows Hello feature, particularly affecting users with privacy shutters on their webcams. Reports indicate that facial recognition no longer functions properly unless the privacy cover is removed. Users have suggested uninstalling the update as a workaround, while a potential solution involves disabling the RGB camera in Device Manager. Microsoft has acknowledged a separate issue related to Windows Hello affecting specific security features in Windows 11 Pro or enterprise editions. Additionally, users have reported installation failures with the April update, encountering error messages and stalling during the process. Other notable bugs include language inconsistencies, the uninstallation of the Copilot app, and a glitch in File Explorer's menu display.