Yes, it was off a memory stick, taken from my purchased copy, when it tries to load I get the message that it is not recognised as an authentic copy. Another thing that happens is that it already has the serial number, apart from the entries in the last box, completed when it appears on the screen.
I have also tried downloading a trial copy, and would then add the serial number of my purchased copy, but this will not go beyond the download assistant screen and then it hangs up. Not sure how I can proceed, ideas??