Easy Context Menu - Easy Context menu is a Freeware portable utility that includes useful tweaks for the context menus.
Chocolatey - The sane way to manage software on Windows.
FileMenu Tools - FileMenu Tools lets you customize the context (right-click) menu of Windows Explorer.
Scoop - A command-line installer for Windows
Shell context menu manager - Powerful and lightweight context menu manager for Windows File Explorer.
Ninite - Ninite is the easiest way to install software.