That's exactly what I meant. Thanks.
Now, to be absolutely sure (I don't want to do anything wrong here), I can have it installed on both machines, but I should not run the two copies simultaneously, because I will get blacklisted? They can alternate, and that's OK? Eventually, I won't use the old machine, but I'm not there yet. I can't completely abandon my older PC; it still has printers and a scanner that don't work with 64-bit Windows 7.