Most software sold buy sellers on Amazon appears genuine at first but is actually not legit! Reason its fake the seller or the counterfeiters has found a way of putting a date time stamp on the software so that it works at first and looks good but then some time further down the line the timing expires and you will get a message from Microsoft telling you that your version is not genuine! Amazon should be aware of this practise and stop these!! sellers from their illegal activities!!!!!!!!