Hi, I have a 2009 iMac I planned to give to my mom who only surfs internet and email. I had a old 250 GB SSD so no expense. I planned to use OpenCore Legacy Patcher but to do so need High Sierra. I started with Snow Leopard, then Moutain Lion, and now El Capitan but when trying to upgrade to High Sierra I get gray screen with a zero crossed out. I know people are using OCLP on 2009 iMac so how do I get High Sierra installed.
Thanks,
Chris
Thanks,
Chris