Enable or disable Explorer right click context menus easily, with ShellViews
Most shell extensions are automatically installed by the system, but there are also many other applications that install additional shell extension components. For example: If you install WinZip on your computer, you’ll see a special WinZip menu when you right-click on a Zip file.
This menu is created by adding a shell extension to the system. ShellExView displays the details of shell extensions installed on your computer, and allows you to easily disable and enable each shell extension. ShellExView can be used for solving context-menu problems in Explorer environment, such as when right-click is slow or weird behavior is caused by context menu handlers.
A sister tool to ShellExView (which you may need more often) is ShellMenuView. ShellMenuView displays the list of static menu items appearing in the context menu when you right-click a file/folder on Windows Explorer, and allows you to easily disable unwanted menu items.
You will need these two applications especially if you experience frequent crash & restart problems, usually coming from context menu entries added by various non-microsoft programs.