Home Forums Windows Help Win 7 key for installation on older PC Forum Rules | Contact Forum Editor | Report a Post Win 7 key for installation on older PC [email protected] 16:12 17 Oct 2015 Locked Hi. I have a full version of Win 7 Home Premium 64bit which I installed on my home built PC. My older DIY PC still has XP on it (I use it mainly for storage). My question: Can I install my Win 7 full version on the old PC and just buy another key? Fruit Bat /\0/\ 16:25 17 Oct 2015 Yes but be careful where you buy the key from. [email protected] 16:35 17 Oct 2015 Hello Fruit Bat :) good to hear from you again. I suppose the next question is "where from" - Amazon or the like? bumpkin 18:15 18 Oct 2015 I would try it with the same key first, I know it should not work but..... lotvic 21:08 18 Oct 2015 .... you will be okay for a while until the big server in the Micromist decides to notice - of course if you don't go on line with after it's activated - well that's another story. This thread is now locked and can not be replied to.