I have Windows 7 64 bit Home premium currently unactivated on my computer with a real serial and I haven't put it online yet as the key code is already in use on another computer. I would like to know that if it says 3 days until automatic activation, does this mean that if I put it online it won't activate the serial and check if it's in use or something? I'm afraid that the other system which originally has the serial won't work if it does that. I also heard that you can reset the automatic activation time? Anyways if someone knows how I can change the serial to another serial that is already in use and then disable the activation system permanently? And as I said I don't want the real serial to be activated, I want to change it before putting it online just in case if it could check the serial before the 3 day automatic activation time ends. Thanks!