


I've already backed up my important files I want to keep to a USB. I've already formatted my SSD as a boot disk. I can begin downloads but they won't finish and the one time it did finish it said the file was corrupted and wouldn't let me install it.

I've spent probably 4 hours trying different ways to get Mac OS Sierra, El Capitan, Snow Leopard and Lion installed onto my SSD via the App Store. Long story short I cannot clone the failing drive, I cannot boot into internet recovery mode either to install the OS onto my SSD. So my stock HDD is failing and I bought a 500GB SSD to replace it with. First off I'm not crazy- I've just literally never done this and I like to know every detail.
