How to change ReSharper unit test architecture to x64?

Question

In VS2012, I resolved a BadImageException from running a unit test by going to: TEST-> TEST SETTINGS -> DEFAULT PROCESSOR ARCHITECTURE -> x64.

This works in the built in

Answer 1

With, Visual Studio 2015, I've found that both x86 and x64 settings will cause this. The solution was to close and restart Visual Studio.