I had Boot Camp installed and working well on my MacBook Pro (15-in, Late 2011) until I upgraded it to Yosemite. When I ran into problems with Boot Camp I tried to launch Boot Camp Assistant. But it threw a message box saying "Boot Camp Assistant cannot be used. This Mac does not support Boot Camp.". I thought that something got corrupted over a long period of time. Then I did fresh clean install of OS X Yosemite so my Mac looks like just bought in terms of its content. However when I ran Boot Camp Assistant it threw the same error message. Does anyone know what this means and how to fix the problem? Could this just mean that Apple stopped supporting older models of MacBook Pros with regard to Boot Camp in Yosemite?