Hey guys ive never set up my os because i bought my pc off a friend. I cant remember the current motherboard model but i have a i3 540 and a gtx 770 with 8gb ram and a 750w psu. I just got an i5 4690k and a GA-z97-D3h, and i dont know if its possible to take my old os off and put it onto the new set up, also i dont have any serial code for the old os. If you can help me out thanks