hmmmmmm just tried the mscorswv.exe process solution in windows, i know it seems simple and a silly thing to say but if the cpu of the windows machine is on 100%, so will the cores of the mac. So if the process is hogging the cpu that is why. Look at the processes in an admin account on task manager and show all processes. Its a system process and after is finished the cpu temp went down to normal. High cpu usage on mac may be because of underlying processes on windows. i hope this is info helps! thanks for the discussion guys finding the solution has really helped me!