QGIS 2.14 standalone GRASS provider missing Msys folder, can't execute tools

In QGIS 2.12 and down, when one went about manually setting the GRASS provider folder paths, this was the way to do it

In GIS 2.14 there is no Msys folder in the same path (...\apps\msys) or any other folder in the QGIS installation.

So even though QGIS standalone needs to have it set correctly in order for GRASS tools to work, it can't be done.

So how do you make GRASS tools work in QGIS 2.14?

Answer

I got the same problem using the Osgeo installer, but I just managed to solve it.

First download this https://sourceforge.net/projects/mingw/?source=typ_redirect

Install it, look for msys-base package and install it.

Set the path to msys in QGIS to "C:\MinGW\msys" or what ever local drive it was installed on and the Grass algorithms should work fine.