1. iMore Question's Avatar
    I just purchased an iMac 4k Retina that shipped with El Capitan. I need to downgrade to Yosemite to keep the computer compatible with 3rd party software.

    kind regards
    02-04-2016 12:14 PM
  2. anon(9602380)'s Avatar
    Welcome to iMore. I am pretty sure this can not be done. You iMac comes with a specific OS X for a reason. That reason being, so it will run properly. Here is a link from Apple as to why you should not attempt to run an older version of an OS X than the one that came with you iMac. That being said, you could make a boot disk of Yosemite with DiskMaker X on a USB or external drive and try it first to see how your iMac will run.
    02-05-2016 10:11 AM

Similar Threads

  1. Replies: 15
    Last Post: 03-14-2016, 04:59 PM
  2. Replies: 14
    Last Post: 02-26-2016, 11:03 PM
  3. Issue with Apps
    By CelticStar87 in forum iPhone 6s
    Replies: 2
    Last Post: 02-04-2016, 04:58 PM
  4. Day One 2 arrives with a fresh look, multiple journals, and much more
    By iMore.com in forum iMore.com News Discussion
    Replies: 1
    Last Post: 02-04-2016, 01:52 PM
  5. How to make a website when you don't know how to code
    By iMore.com in forum iMore.com News Discussion
    Replies: 0
    Last Post: 02-04-2016, 10:51 AM