Forum, I would like to put OSX 10.12 Sierra onto a MacBook Pro from 2009 that is currently running OSX 10.11 El Capitan. I cannot find it on the Apple web site. I would like to put Boot Camp onto this MacBook so that I can run either Win XP or Win 7. The processor that I have is an Intel Dou Core running at 2.8 GHZ. Any ideas on either one? Thanks