OpenShell

OpenShell is the definitive open-source successor to Classic Shell, restoring the functional Start menu and Windows Explorer toolbars to Windows 10 and 11.

OpenShell delivers a high-performance replacement for the modern Windows UI, focusing on productivity through granular customization. It reinstates the classic two-column menu layout, provides skinning support for taskbars, and adds essential file management shortcuts to Windows Explorer. By utilizing a lightweight C++ codebase, it maintains a minimal memory footprint while offering power-user features like custom start buttons and advanced search filtering. It is the industry standard for users requiring the reliability of the Windows 7 interface on NT 10.0+ systems.

https://github.com/Open-Shell/Open-Shell-Menu