Microsoft's Windows 11 features a centered Start menu and taskbar aimed at modernizing its aesthetic, but many users find it uninspiring. The Quantum Start Menu is a Windhawk theme designed to enhance the Windows 11 interface, providing a cleaner and more intuitive Start menu and taskbar. YouTuber Link Vegas has created a video guide for installing the Quantum Start Menu, which requires a theme package, Windhawk application, and configuration files.