OldMacFan

Q: OS X Yosemite installer app won't run

I am trying to install OS X Yosemite on an iMac currently running OS X 10.9.5.   I downloaded the OS X Yosemite installer before El Capitan was released thinking I would be able to run it sometime in the future.   Now when I run the installer app it pops up a message saying that the installer is no longer valid and that I need to download a newer version from the app store.   Well, guess what?   The only installer available is for 10.11.    Is there anywhere I can get a valid Yosemite installer?

iMac (21.5-inch Mid 2011), OS X Mavericks (10.9.5), 2.8 ghz i7, 16gb memory

Posted on Jun 24, 2016 6:07 AM

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Q: OS X Yosemite installer app won't run

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