When downloading a Major macOS release, as soon as it starts the install, you just "Quit" the installer. In the future, download a copy of each major OS release so that you will then have that version of the OS in your App Store -> Purchases tab, which you will then be allowed to download again in the future. Better to keep the money for a new Mac which will give you all of the hardware upgrades, and more.Īnother way to "Maybe" get Mavericks, Yosemite, or El Capitan is to make a Genius Bar appointment at your local Apple store and ask them to install of of those version (it is best to have a valid reason, such as software compatibility). NOTE: DO NOT spend money on upgrades if the costs are only going to extend the life of this system for a short period of time. That would tell you if you need to add more RAM or if replace the disk with an SSD. If you want to try Sierra, you can backup your system (2 copies with 2 different backup utilities would be even better), then repartition your boot disk to get a 30-50GB partition where you can install Sierra for testing. I have the Late 2011 i7 Macbook Pro and I found that I needed to upgrade my RAM to its max (16GB in my case) and I also needed to replace my rotational disk with an SSD to get good performance when I upgraded to Mavericks and later El Capitan (I'm waiting for a few.
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