Hello i recently have built a new gaming pc and previously my 1tb hdd was connected to a stock motherboard from a stock pc and when i install that hdd on my new gaming pc it says i got to activate windows 8, and i dont have the cd key because it came pre installed on the computer and i no longer have the option to call microsoft on windows 8 because i have been so stupid to try to find a windows 8 key for free, and also, about every 3 hours i get like a pop up that takes me off anything im doing to tell m to activate windows 8. So the question is how much time do i have before it expires and i really have to buy it