The linked article hit my questions' topics but I did not deeply understand nor the configuration of the Apple ID on the fresh installed El Capitan nor the legal aspects of the solution. use it to do a clean install on my iMac (erasing all disk content before choosing the HDD in which to install El Capitan).use a Mac of a friend of mine which runs El Capitan to download El Capitan from Mac App Store.This reading brought me to another solution: Alternative solution Said that, after some search, I found this macworld article showing alternative methods to upgrade from 10.5.8 MacOSX version to a more recent one. use the App Store to download and install El Capitan.buy the DVD of Snow Leopard (10.6) from online Apple Store and install it on 10.5.8.✘ MacOSX 10.6.8 is required to be installed (due to Mac App Store introduction) on the iMac Official solution (or what I undestood reading Apple website) ✔ my iMac version is listed under the upgradable devices This shows the upgrade paths up to Catalina for all Intel Macs, and their. Recently upgraded to SSD but I never created an Apple ID and I didnt need an one, when I re-downloaded and installed a clean version of OS X Lion 10.7.5 for my MBP thru Internet recovery but.

Now I want to upgrade my OS to El Capitan (10.11). Note the horizontal scrollbar on the bottom of this tip to show the Mac Pro compatibility is beyond the width of this tips layout.very Mac released on or after an operating system release cant run an older version of Mac OS. I have an iMac(Early 2009) running Leopard (10.5.8).

Upgrade mac 10.7.5 to 10.10