Ok I resolved my problem.
click on start button, type msconfig in the search bar, then press Enter, then go to start, advanced options and uncheck the number of processors and memory limit.
Thanks a million for your easy to implement solution.
Not only did this enable the turbo boost function, but it also brought back the 4th core of my i7-3610QM processor which did not work before.
I don't know how this checkmark got there, nor why the number of processors was limited to 6.
I am running on the W7-64 which I had cloned from a previous laptop with a two-core processor.
Keep up the good work