Urquhart's links that you posted have nothing to do with Bob0000_1's problem, i.e. that the App Store is not permitting him to d/l El Cap even though he's running Yosemite.

I'll repeat my suggestion that he call AppleCare.

More: See post #48669

Last edited by artie505; 04/28/18 10:22 PM. Reason: Expand & More
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In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire