I think after installing 5.6 32bit unity, it broke the Windows Explorer default application feature – Where clicking UnityPackage in Explorert would open in any currently active Unity instance.(instead it started opening new Unity instance every time).Found solution in forums (link) Here is Registry Fix […]

You can add custom context menu items into Windows Explorer (more info), so you can create custom menu item that opens the current folder as a project in Unity. (it will still warn you about project version if its different) Example RegEdit file: *Note! you […]